FIELD OF THE ARTThe invention relates to a non-lethal remote-acting electroshock weapon (DESHO) with electrical stunning means for use by law enforcement agencies and for civilian self-defense.
STATE OF THE ARTAs analogs of the proposed invention, well-known in the world small DESHO models TASER C2 [1] and TASER PULSE [2], (dimensions and characteristics [3]) are selected, which were previously manufactured and are manufactured today by the world's leading company in the field of electroshock weapons Taser Int. (currently Axon Enterprise, Inc. (“Axon”), USA),
DESHO TASER C2 model made in a form similar to a pistol and TASER PULSE model made in the form of a pistol are designed for temporary incapacitation (immobilization, stunning, keeping paralyzed) of biological targets (target, offender, biological target, biological object) using electrical current at a distance or in direct contact with the target. Target stunning at a distance is achieved using a firing cartridge that throws at the target two probes equipped with devices for holding them on the target (barbed needles), each of which is connected by means of an insulated wire (current-conducting wire) arranged (laid) in the cartridge with the corresponding current-carrying electrode on the cartridge. When the cartridge is loaded in the DESHO, the current-carrying electrodes of the cartridge are electrically (or through a gap of 0.1-0.5 mm) connected to the combat (contact) electrodes of the DESHO that entered the front end of the DESHO, to which, when the DESHO is started, a high voltage electrical voltage that impacts the target is supplied from a high voltage stunning pulse generator located in the weapon, between which combat electrodes a combat (impacting the target) high voltage spark discharge is formed. The firing cartridges have a propellant charge of a pyrotechnic substance (pyro charge) initiated by a high voltage electrical current that impacts the target, which is supplied to the pyro charge when the DESHO is turned on. The charge is initiated and depressurizes the container with compressed gas using a cutting device, which gas expands in the barrel holes of the cartridge throwing the probes with the current conducting wires at the target. The cartridge is rigidly attached to the DESHO by means of a mechanical catch located on the cartridge. The immobilization of the target at a distance is achieved by closing the electrical circuit of the stunning current through the body of the biological target by means of the current conducting wires connecting the combat electrodes of the DESHO with the probes that hit the target. The immobilization of the biological target by the contact method (in direct contact mode) is carried out by direct interaction (pressing the combat electrodes against the body) of the DESHO with the body of the biological target, without firing a shot.
Said DESHO models have the following disadvantages. In order to use the DESHO in direct contact mode, it is necessary to disconnect the cartridge first, because when trying to use the DESHO in direct contact mode with the cartridge attached, the cartridge is always fired (since the firing cartridge is initiated by a stunning high voltage spark discharge), that is, a point blank shot is made with mechanical injury to the target. This feature is an obstacle to the rapid use of the DESHO with the cartridge loaded into it in situations where immobilization of the target at close range is needed (for example, in a cramped room) and a shot from an extremely short distance is undesirable, since it can cause serious mechanical injury to the target or it is pointless since the target can be impacted in direct contact mode. Disadvantages of the analogs also lie in the impossibility of displaying a combat high voltage electrical spark discharge to the aggressor without a shot (for psychological impact aiming at reduction of aggressiveness, before use in direct contact or remotely) when the firing cartridge is loaded, because supplying a stunning high voltage potential to the combat electrodes of the DESHO, to which the current-carrying electrodes of the cartridge are always connected, is followed by the immediate initiation of the pyro charge of the cartridge with the production of a shot. At the same time, it is well known that when a user threatens to use an electroshock weapon with the displaying of a combat electrical spark discharge accompanied by a characteristic noise and the spark discharge glow, the offender stops aggressive actions in many cases, realizing that he will have to deal with electricity and, accordingly, with subsequent pain. It is well known that aggressive animals (for example, dogs, wild animals) almost always stop aggression when a person demonstrates electrical discharges. Therefore, the DESHO analogs can be used in direct contact mode (or for the displaying a combat electrical discharge) only with the firing cartridge disconnected from the DESHO, which excludes rapid remote use of the weapon in case of need for remote impact on a target. To reload a weapon with a firing cartridge, for example, in the event of a miss on the target or in order to immobilize another target that has appeared, it is necessary to disconnect the spent cartridge and insert a new one in the DESHO. Removing the spent cartridge from the weapon is possible only using both hands of the user and for an untrained user it takes several seconds to reload the DESHO with a new cartridge and fire again. During this time, the offender may attack a law enforcement officer, try to run away or use available weapon.
As a prototype of the proposed invention, a small DESHO PhaZZer Hornet of Double Dragon Development & Trading Corporation (Taiwan) [4] was chosen, made in the form of a rectangle consisting of a housing in which a high voltage stunning pulse generator is located that generates a voltage of the stunning electrical current and consists of an inverter that converts low voltage (7.2 V) of the battery or accumulator into an increased voltage of 1.4-2 kV and a high voltage unit that converts the voltage of 1.4-2 kV into an output high voltage electrical current of 50 kV stunning the target. The DESHO PhaZZer Hornet is loaded with a firing cartridge, through which the high voltage stunning electrical current generated by the high voltage unit and supplied to the DESHO combat electrodes is transmitted to the target through the current-conducting wires launched from the cartridge and equipped with devices for holding them on the target.
The disadvantage of the prototype, as well as that of the analog, is the impossibility of using in direct contact mode or displaying a combat electrical spark discharge to the aggressor, without a shot, when loaded with a firing cartridge, and also that for reloading the weapon, the spent cartridge has to be removed from the cavity of the DESHO (the front hollow cavity for firing cartridges in the housing of the DESHO) using both hands of the user to open two lock latches located on the cartridge. It is not possible to remove the spent cartridge after firing using one hand with which the user is holding the weapon. Therefore in order to reload the weapon, if necessary to continue firing quickly, the user loses time to remove the spent cartridge using both hands. Due to the need to use both hands of the user to remove the spent cartridge from the weapon, the time for the second shot is increased. Therefore, the prototype weapon is unloaded slowly, which affects the time it takes to fire the next shot in case of a miss on the target or in order to immobilize another target that has appeared. The design of the firing cartridge of the prototype does not differ from the design of the cartridge described for the analogs. The DESHO analogs and prototype have a safety lock that can be removed and installed manually, protecting the button, which button turns on the high voltage stunning pulse generator initiating the firing of the firing cartridge. Therefore, if the user, while reloading the DESHO with a new cartridge instead of the spent one, forgets to put the DESHO on safe, he could accidentally press the button turning on the high voltage stunning pulse generator and fire a casual shot either at others or at himself (for example, in the loading hand). This feature of the DESHO analogs and prototype reduces the safety of the device for both the user and others.
Therefore, the technical problem of the existing small remote-acting electroshock weapons consists in the impossibility of operation in direct contact mode or displaying a combat electrical spark discharge to the aggressor when a firing cartridge is loaded, and also in the slow reloading. The DESHO analogs and prototypes have little safety for the user at the moment of reloading the weapon with a new cartridge instead of the spent one, since said weapons have only one stage of non-automatic protection.
DISCLOSURE OF THE INVENTIONThe technical result and the purpose of the proposed invention is to develop a small DESHO with the possibility of displaying an electrical spark discharge and using in direct contact mode when loaded with a firing cartridge, with the possibility of accelerated reloading of the weapon, with increased safety for the user and with the possibility of competing in the field of DESHO with the world's leading foreign companies, since the proposed weapon in terms of design simplicity, small size, and flexibility in application surpasses the best samples of the DESHO of the world's leader in the DESHO development Axon Enterprise, Inc. company and even more so of Double Dragon Development & Trading Corporation (analogs and prototype). In addition, the cartridge used in the claimed invention can also be used in full-size models of multi-shot DESHO made in Russia, for example, DESHO for law enforcement agencies, which improves the logistics of ammunition supply.
This goal is achieved by the fact that a small remote-acting electroshock weapon comprises a non-conductive housing with a cavity for a firing cartridge activated by a low voltage and having launchable current-conducting wires and a pyrotechnic device arranged inside the firing cartridge for releasing the cartridge from the housing of the weapon, a source of electrical energy, and a high voltage stunning pulse generator having an electrical deactivation switch, a movable mechanical safety trigger which can be controlled by a finger of the hand holding the weapon and interacts with the electrical deactivation switch of the high voltage stunning pulse generator and with an additional electrical switch for preventing firing of the firing cartridge, a safety lock for preventing movement of the safety trigger in the event of unauthorized movement thereof and for locking the firing cartridge in the housing during firing; and a catch for locking the firing cartridge in the housing, said catch being controllable by the hand with which the user is holding the weapon.
An additional feature is that the movable safety trigger can be locked in certain positions relative to the housing of the weapon.
An additional feature is that the movable safety trigger has an intermediate position lock.
An additional feature is that a spring-loaded ejector of the firing cartridge is located in the housing of the weapon.
An additional feature is that the source of electrical energy in the form of an accumulator has a charging socket located inside the cavity for a firing cartridge.
BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1. General view of a DESHO with firing cartridge in safe position.
FIG. 2. General view of the DESHO in the “contact action” position.
FIG. 3. General view of the DESHO in the “remote shot” position.
FIG. 4. View of the DESHO from below.
FIG. 5. Types of firing cartridges.
FIG. 6. The DESHO with the safety trigger removed.
FIG. 7. Longitudinal section of the DESHO (firing cartridge is pulled out of the cavity of the housing).
FIG. 8. The DESHO with the upper half of the housing removed and a view of the safety trigger, the DESHO with the upper half of the housing removed and a longitudinal section.
FIG. 9. The DESHO cut from above, with no firing cartridge.
FIG. 10. Experimental DESHO sample.
IMPLEMENTATION OF THE INVENTIONFIG. 1. The DESHO consists of apolymer housing1 assembled from the lower and upper halves, in the cavity (pocket) of the housing there is a firingcartridge2 locked in thehousing1 when loading. On the upper half of the housing there is a movable rotating (rotary)safety trigger3 with a radial cutout, a movable spring-loadedsafety lock4, and acatch5 for locking thecartridge2 in thehousing1. In the position shown inFIG. 1, the DESHO is put on safe against accidental turning on and firing (“safe position”), since the rotation of thesafety trigger3 counterclockwise is prevented by the upper protrusion of thesafety lock4 extended from thehousing1 into the cutout of thesafety trigger3.
FIG. 2. When pressing the upper protrusion of thesafety lock4 with the thumb of the hand with which the user is holding the DESHO, the protrusion descends into the housing, compressing spring of its own and allowing thesafety trigger3 to be turned counterclockwise with the same finger of the user's hand. At the same time, when turning at an angle of about 90° counterclockwise, the cutout of thesafety trigger3 opens arecess6 of the upper half of the housing, in which there is abutton7 of the electrical deactivation switch of the high voltage stunning pulse generator located in the lower half of the housing (see below). The DESHO in theFIG. 2 is in the position for operating in direct contact with a biological object (“contact action”).
FIG. 3. The position of thesafety trigger3 when turning counterclockwise, when theprotrusion8 of thesafety trigger3 reaches thecatch5 and abuts against it, corresponds to the “remote shot” position (starting the high voltage stunning pulse generator and activating the firing cartridge).
FIG. 4. On the lower half of thehousing1, there arecombat electrodes9 and10 to which the output of the high voltage stunning pulse generator is connected.
FIG. 5. The firingcartridge2 has a design described in the utility model patent RU No. 197693 [5] and is activated by a low voltage (1.5-12.0 V) from the source of electrical energy of the DESHO in the form of an electrical battery or accumulator. Thecartridge2 has a case withrecesses11 in its rear part, amovable protrusion12 is also located in the case, and barrel holes13 withplugs14 are made therein that hold probes with the current-conducting wires arranged (laid) in the barrel holes. Apyrotechnic power source15 with electrical low-voltage contacts that initiate a pyro charge for throwing probes is located in the rear end of the cartridge case. Prior to activation of thecartridge power source15, theprotrusion12 protrudes above the surface of the cartridge case. After the activation of thepower source15 and the throwing of the probes with the current-conducting wires at the target, the part with theprotrusion12 is moved in the case by means of a gas engine located in the cartridge so that theprotrusion12 is retracted into the case flush with the surface of the cartridge case. In the top two drawings ofFIG. 5, the cartridge is shown before the shot, and in the lower drawing, the cartridge is shown after the shot.
FIG. 6. Thesafety trigger3 hasprotrusions16 and17 with bevelled ribs on the inside of the trigger. In the upper half of thehousing1, anannular groove18 is made and an electrical microswitch19 (SMD tact button) is located.
FIG. 7. Springelectrical contacts20, anejector21, anejector spring22, aspring23 of thecatch5 for locking the cartridge, amicroswitch19.
FIG. 8. On the top view of the figure, when thesafety trigger3 is in safe position (put on safe), thelower protrusion24 of thesafety lock4 does not enter therecess11 of thecartridge2. Thecartridge2 is locked in thehousing1 of the DESHO by thecatch5 geared to theprotrusion12 of the cartridge.
In the lower drawing of the figure, when thesafety trigger3 is in the “remote shot” position, thelower protrusion24 of thesafety lock4, which is held in this position by the lower plane of thesafety trigger3 pulled over it, is inserted into therecess11 of thecartridge2. At the same time at the moment of firing, theprotrusion12 of the cartridge is retracted inside the cartridge case and disengages from the tooth of thecatch5. Therefore after the shot, thecartridge2 is held in thehousing1 of the DESHO only by thelower protrusion24 of thesafety lock4.
FIG. 9. Springelectrical contacts20, anejector21, a chargingsocket25, a high voltagestunning pulse generator26, anaccumulator27.
The DESHO operates as follows.
Loading of the DESHO is carried out with thesafety trigger3 in safe position, by inserting thecartridge2 into the cavity of thehousing1 from the front, while theprotrusion12 depresses thecatch5 for locking the cartridge, while compressingspring23 of the catch, after which the tooth of thecatch5, when descending, snaps onto theprotrusion12 and locks the cartridge in thehousing1. When inserting the cartridge, it presses theejector21 with its rear end and pushes the ejector into the housing of the DESHO, compressing theejector spring22.
Unloading the DESHO, if necessary, is done by pressing the rear end of thecatch5 with the thumb of the hand holding the DESHO. In this case, the catch turns on its axis, compressing thespring23, the tooth of the catch, when rising, disengages from theprotrusion12 of the cartridge, after which thespring22 compressed when loading, ejects the cartridge from the cavity of the housing of the DESHO by means of theejector21. Therefore, the unloading of the DESHO or extraction of the spent cartridge to load a new one in order to produce a quick second shot can be carried out by only the hand with which the user is holding the DESHO, which is faster than in the analogs and prototype, since the user does not need to use the second hand to remove the spent cartridge from the weapon.
If it is necessary to display a high voltage electrical spark discharge to the offender to remove aggression from him or to use the weapon in direct contact mode (without shots) with a firing cartridge loaded in the DESHO, the user presses the upper protrusion of thesafety lock4 with the thumb of the hand holding the weapon on while simultaneously turning thesafety trigger3 counterclockwise with the same finger to the “contact action” position. This opens access to thebutton7 in therecess6 of thehousing1, and the user presses thebutton7 with his thumb. This turns on the high voltagestunning pulse generator26 and the high voltage stunning voltage of the electrical current is applied to thecontact electrodes9 and10, forming a high voltage spark discharge between them for displaying, or when pressing the DESHO against the body of the target, the stunning voltage of the electrical current is supplied through theelectrodes9 and10 to the body of the target, producing an immobilizing effect on the target. When the high voltage electrical spark discharge is displayed to the offender or made the contact impact on him, the activation of the firing cartridge does not occur. The independence of the activation of the firing cartridge from the operation of the high voltage stunning pulse generator is achieved due to the fact that the electrical activation of the firing cartridge is initiated not by the high voltage stunning voltage of the electrical current generated by the high voltage stunning pulse generator, as in the analogs and prototype, but only by the low voltage of the electrical current supplied to thepyrotechnic power source15 for throwing cartridge probes only in the “remote shot” mode. It is fundamentally impossible for the analogs and prototype to operate in direct contact mode or to display an electrical discharge with a firing cartridge loaded in the DESHO. To improve the positioning of the cutout of thesafety trigger3 above thebutton7, a separate catch, for example, a spring ball catch locking thesafety trigger3 in the intermediate position and installed therein or inside thehousing1 can be used.
If it is necessary to impact the offender remotely (firing) with a short-term immobilization of the offender, the user presses thesafety lock4 while turning thesafety trigger3 counterclockwise through the “contact action” position to the “remote shot” position. When thesafety trigger3 is rotated at an angle of more than 90%, theprotrusion16 of thesafety trigger3 moving in theannular groove18 moves with its bevel over thebutton7 of the electrical deactivation switch of the high voltagestunning pulse generator26 and turns on the switch that starts the generator. When theprotrusion8 of thesafety trigger3 is further turned all the way into the catch5 (serving as a rotation limiter), theprotrusion17 of thesafety trigger3 moving in theannular groove18 moves with its bevel over the button of themicroswitch19 and turns it on. When turning on themicroswitch19, theelectrical contacts20 adjacent to the electrical contacts of thepyrotechnic power source15 of thecartridge2 for throwing the probes are supplied with a low voltage of the power supply of the DESHO from theaccumulator27. Thepower source15 of thecartridge2 is activated throwing the probes with the current-conducting wires at the biological target. When the probes with the current-conducting wires hit the biological target, with the high voltagestunning pulse generator26 already operating, the stunning voltage of the electrical current through thecontact electrodes9 and10 adjacent to the terminals of the current-conducting wires of thecartridge2 is supplied to the biological target through the probes held on it, immobilizing the biological target.
If the user wants to stop the immobilization of the biological target, the user turns thesafety trigger3 clockwise with his thumb, back to the “contact action” position or safe position. In the “contact action” position, theprotrusion16 releases thebutton7 and the impact of the stunning electrical current on the target is stopped, but can be resumed at any time, since the DESHO still remains connected to the biological target by the current-conducting wires with the probes held on the target. To resume immobilization, the user (in case the offender does not obey the requirements of the law enforcement officer) just have to press thebutton7 with the thumb again, as in case of the operating in direct contact. If the user wants to stop the immobilization of the target completely or shoot at another biological target, he turns thesafety trigger3 clockwise back to the end (all the way), to safe position. The lower plane of thesafety trigger3, shifted from the upper protrusion of thesafety lock4, ceases to hold it in the pressed position, and the cutout of thesafety trigger3 makes it possible, under the action of the previously compressed spring, to extend the upper protrusion of thesafety lock4 from the case, and, accordingly, to move thelower protrusion24 of thesafety lock4 out of therecess11 of thecartridge2. Since after the shot, theprotrusion12 of thecartridge2 is pushed into the cartridge case and no longer interacts with thecatch5, thecartridge2 is vigorously ejected from the housing of the DESHO by theejector21, together with the current-conducting wires stretched from the cartridge to the biological target. Therefore, when the DESHO is set to safe position, the spent cartridge is automatically ejected. Therefore, if it is necessary to quickly reload the DESHO after firing, the process of reloading, in comparison with the forced extraction of thecartridge2 by pressing thecatch5 with the thumb, is even faster, since there is no need for unnecessary finger movement with the taking of the DESHO in other hand of the user for the convenience of pressing thecatch5.
However, the additional possibility of non-automatic extraction (except for the automatic one described above) of the spent or failed cartridge using one hand with which the user is holding the DESHO, by pressing thecatch5 allows, in addition to the cartridge described herein, to use also a low-cost firing cartridge additionally described in the patent [5] or to extract the spent cartridge in case of accidental failure of the gas engine located therein or possible various kinds of cartridge failures and misfires. Reloading the same DESHO containing the spent cartridge, which cartridge is regular for it according toFIG. 5, is only possible by setting the DESHO to safe position. It is impossible to extract the spent cartridge withcatch5 and insert a new cartridge into the cavity of the housing without setting the DESHO to safe position. This increases the safety of using the DESHO by the user in terms of the impossibility of inserting a new cartridge into the cavity of the DESHO, when a low-voltage electrical current can be applied to theelectrical contacts20 and there is a possibility of injury to the user from the cartridge firing at an unexpected for the user time and direction of the probes throwing.
If it is necessary to make an arrest of the offender (longer-term immobilization), the user, after firing a shot and immobilization of the target falling to the ground, does not turn thesafety trigger3 back to the “contact action” or safe position, but simply puts the weapon with the high voltage stunning pulse generator working to the ground and makes an arrest of the offender with handcuffs. After the arrest is made, the user has set thesafety trigger3 to safe position by turning it thus turning off the high voltage stunning pulse generator.
In this case, the DESHO can be equipped with an electronic timer for the duration of the high voltage stunning pulse generator operation. For example, impact on the offender is 3 s and rest of the offender is 2 s (to restore the function of the respiratory and cardiac system). After that, the cycle can be repeated until the DESHO is set to safe position by the user.
The chargingsocket25 is located in thehousing1, inside the cavity for thecartridge2 in order to prevent the development of “capacitive breakdown” [6] on the user and the concomitant “fear of his own weapon” in the user. Due to the smallest design of the proposed DESHO among the ones currently available in the world, the housing of the proposed DESHO in mass production must to be made of two halves welded by ultrasound in order to prevent the discharge of “capacitive breakdown” from passing through the gaps between the halves of the housing. The electrically conductive parts of thebutton7 are separated from the user's finger by a sufficient distance (especially in the “remote shot” mode, which is the main mode of the DESHO operation) that is greater than the length of the electrical spark discharge developed during the “capacitive breakdown”, so the only weak point for the development of “capacitive breakdown” is the accumulator charging socket being, for example, a micro-USB connector. In the proposed design, the connector is removed inside the housing, which completely eliminates the development of “capacitive breakdown” on the user. The accumulator is charged by a mains charger in the form of a cartridge inserted into the cavity of the DESHO being connected by its protruding contacts (male) to the DESHO connector (female).
The above description discusses the preferred embodiments of the present invention, which may be changed or modified without departing from the scope of the present invention as defined in the claims.
Comparison of the proposed technical solution with the identified prior art analogs and prototype did not reveal an identical match of the set of essential features of the invention. The proposed differences of the claimed electroshock weapon, which directly follow from the statement of the purpose of the invention, are not obvious to a person skilled in the field of electroshock devices.
The proposed DESHO has the minimum overall dimensions (126×19×55 mm) in the world at the date of filing the application for the invention, allowing both remote action with the possibility of contact use in an unloaded state, and even more so with the possibility of contact action when loaded. Such dimensions being slightly (only in thickness) exceeding the dimensions of modern smartphones make it possible to constantly carry the DESHO in pockets or women's handbags, without inconvenience and without protruding below the clothes. Reducing the length of the proposed invention by more than 5-6 mm is impossible in principle, since in case of such a reduction, the safe holding of the weapon by the user's hand becomes dangerous. This is a consequence of the fact that the length of a high voltage electrical spark breakdown by a sliding discharge (along the housing) can reach the user's fingers even under normal atmospheric conditions, while in conditions of high humidity, fog, and precipitation, the user will be unequivocally struck in the hand by the electrical impact of his own weapon. Said reduction can be achieved by reducing the length of the firing cartridge compared to that described in the patent [5], by reducing the length of the arranged (laid) current-conducting wire from 8-12 m (for law enforcement agencies) to 4.5-5 m (for citizens). The simplicity of the design of the proposed DESHO and, accordingly, its low cost in theory allows the civilian self-defense function to be carried out, leaving the DESHO in the “arrest” mode at the place of use and with subsequent compensation of the cost of the DESHO by the manufacturer (the “Safe Escape” program) [7]. Such a program, deployed since the founding of Taser Int. company, has been active for 26 years until today. Such programs do not exist in Russia due to general poverty.
Example of ImplementationFIG. 10 Appearance of an experimental DESHO sample made by 3D prototyping and a firing cartridge. In the experimental DESHO, Turnigy nano-tech Lipo Pack 300 mah 7.4 V 90 C accumulator, a stunning pulse generator with preionization, and a small coreless transformer were used [8]. The output electrical power of the experimental DESHO can be adjusted from 3.0 W to 10.0 W, which allows the production of DESHO for use by citizens and law enforcement agencies.
LIST OF SOURCES CITED- 1. https://www.beststungun.com/product/taser-c2-laser-gold-package/
- 2. https://buy.taser.com/products/taser-pulse-plus
- 3. Ladyagin Yu. O. “Remote-acting electroshock weapons” Moscow: Stalingrad Foundation Publishing House, 2017, pp. 71-72.
- 4. https://lesslethalarms.wordpress.com/tag/phazzer-hornet/
- 5. Utility model RU No. 197693
- 6. Ladyagin Yu. O. “Remote-acting electroshock weapons” Moscow: Stalingrad Foundation Publishing House, 2017, pp. 308-312.
- 7. https://buy.taser.com/pages/safe-escape-product-replacement-guarantee https://www.stun-gun-defense-products.com/buy-stun-gun/taser-lifetime-replacement-guarantee html
- 8. Ladyagin Yu. O. “Remote-acting electroshock weapons” Moscow: Stalingrad Foundation Publishing House, 2017, pp. 457-464.