| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| US781553XA | 1955-01-19 | 1955-01-19 | |
| US532719AUS2942069A (en) | 1955-09-06 | 1955-09-06 | Coordinate switch | 
| Publication Number | Publication Date | 
|---|---|
| GB781553Atrue GB781553A (en) | 1957-08-21 | 
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| GB1227/56AExpiredGB781553A (en) | 1955-01-19 | 1956-01-13 | Coordinate switching unit | 
| GB26732/56AExpiredGB804979A (en) | 1955-01-19 | 1956-08-31 | Improvements in or relating to multiple contact switches | 
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| GB26732/56AExpiredGB804979A (en) | 1955-01-19 | 1956-08-31 | Improvements in or relating to multiple contact switches | 
| Country | Link | 
|---|---|
| BE (2) | BE550834A (en) | 
| CH (2) | CH345055A (en) | 
| DE (1) | DE1110239B (en) | 
| FR (1) | FR1154428A (en) | 
| GB (2) | GB781553A (en) | 
| NL (2) | NL210942A (en) | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| US3120584A (en)* | 1960-11-29 | 1964-02-04 | Western Electric Co | Multisurface cross point switching mechanisms | 
| DE1263550B (en)* | 1963-10-16 | 1968-03-14 | Siemens Ag | Device for querying and remote transmission of counters, especially electricity counters | 
| DE1189592B (en)* | 1963-11-09 | 1965-03-25 | Telefonbau & Normalzeit Gmbh | Coupling matrix arrangement for telecommunications, especially telephone dialing systems with protected contacts and elastic column and row contact multiple conductors | 
| FR2135059B1 (en)* | 1971-05-04 | 1976-12-03 | Ass Ouvriers Instr Precision | |
| GB8303679D0 (en)* | 1983-02-10 | 1983-03-16 | Gould Instr Ltd | Variable control device | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| DE878675C (en)* | 1953-04-23 | Mix & Genest Ag | Telephone PBX | |
| AT22412B (en)* | 1902-07-07 | 1905-12-27 | Albert Parker Hanson | Line arrangement for low-voltage power stations. | 
| AT119408B (en)* | 1928-01-25 | 1930-10-25 | Gotthilf Ansgarius Betulander | Selector device with crossed drive links. | 
| US2616994A (en)* | 1948-05-06 | 1952-11-04 | Ibm | Rotary switch | 
| DE899378C (en)* | 1948-10-05 | 1953-12-10 | Technograph Printed Circuits L | Flat multi-core electrical cable and process for making it | 
| BE494815A (en)* | 1949-03-29 | |||
| BE512147A (en)* | 1951-06-18 | |||
| DE924217C (en)* | 1952-10-31 | 1955-02-28 | Standard Elek Zitaets Ges Ag | Selector switch for telecommunications, in particular telephone systems | 
| Publication number | Publication date | 
|---|---|
| CH345055A (en) | 1960-03-15 | 
| CH342610A (en) | 1959-11-30 | 
| BE544534A (en) | |
| NL210942A (en) | |
| BE550834A (en) | |
| FR1154428A (en) | 1958-04-10 | 
| GB804979A (en) | 1958-11-26 | 
| NL203714A (en) | |
| DE1110239B (en) | 1961-07-06 | 
| Publication | Publication Date | Title | 
|---|---|---|
| ES474718A1 (en) | Communication system conferencing arrangement | |
| GB781553A (en) | Coordinate switching unit | |
| CA568201A (en) | Electrical switch | |
| JPS5422704A (en) | Cordless telephone system | |
| GB890236A (en) | Improvements in or relating to cross-bar switches | |
| GB776748A (en) | Improvements relating to high-voltage air-break circuit-breakers | |
| GB739376A (en) | Improvements in or relating to electric switching and selecting devices | |
| GB800364A (en) | Improvements relating to combined electrical switchgear and fuse assemblies | |
| JPS51147905A (en) | Busy indication circuit in a switch-box type additional telephone set | |
| JPS51149711A (en) | Conference telephone system | |
| GB804295A (en) | Improvements in or relating to contact spring pile-ups | |
| GB809437A (en) | Electrical spring blade contact carrying member | |
| GB643973A (en) | Improvements in or relating to private telephone exchange systems | |
| GB804980A (en) | Improvements in or relating to multiple contact switches | |
| JPS5429903A (en) | Conference service system of key telephonen system | |
| CA518931A (en) | Telephone subscriber's stepping switches | |
| CA496550A (en) | Telephone switching system | |
| GB738308A (en) | Improvements in or relating to electrical key switching equipment | |
| JPS5219010A (en) | Telephone set | |
| AU165152B2 (en) | Improvements in automatic telephone systems employing crossbar switches | |
| JPS5274201A (en) | Display control circuit for key telephone system | |
| GB809434A (en) | Improvements in or relating to contact springs for electromagnetic relays | |
| CA653228A (en) | Stepping switch contacts | |
| AU1542153A (en) | Improvements in automatic telephone systems employing crossbar switches | |
| CA512084A (en) | Multi-office toll switching telephone systems |