| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| US17889171A | 1971-09-09 | 1971-09-09 | 
| Publication Number | Publication Date | 
|---|---|
| JPS4836527Atrue JPS4836527A (ja) | 1973-05-30 | 
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| JP47090862APendingJPS4836527A (ja) | 1971-09-09 | 1972-09-09 | 
| Country | Link | 
|---|---|
| US (1) | US3763421A (ja) | 
| JP (1) | JPS4836527A (ja) | 
| DE (1) | DE2242423A1 (ja) | 
| FR (1) | FR2152166A5 (ja) | 
| IT (1) | IT964345B (ja) | 
| NL (1) | NL7210777A (ja) | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| US4349782A (en)* | 1980-11-21 | 1982-09-14 | Doss James D | Shielded differentiator for automotive ignition applications | 
| IT1196843B (it)* | 1986-12-15 | 1988-11-25 | Fiat Auto Spa | Dispositivo rilevatore elettrico atto a consentire l'individuazione delle fasi di lavoro di un cilindro di un motore a combustione interna ad accensione comandata | 
| US5001432A (en)* | 1990-04-16 | 1991-03-19 | Wixon Glenn H | Ignition test probe | 
| US5208541A (en)* | 1991-06-19 | 1993-05-04 | Daniel Yerkovich | Spark plug firing sensor with capacitive coupling and optical pickup | 
| US5834939A (en) | 1996-10-07 | 1998-11-10 | Makhija; Surender K. | Hand-held ignition voltage tester | 
| CN107534273B (zh)* | 2015-04-30 | 2019-11-19 | 约翰·利森 | 火花塞测试套件 | 
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| FR1017270A (fr)* | 1950-04-20 | 1952-12-05 | Dispositif de mesure ou de contrôle pour circuits électriques | |
| US2926301A (en)* | 1954-12-16 | 1960-02-23 | Sun Electric Corp | Internal combustion engine ignition system testing apparatus | 
| CH394420A (fr)* | 1963-06-25 | 1965-06-30 | Treyvaaud Rene | Appareil de détection d'un champ électrique ou magnétique | 
| DE1227731B (de)* | 1963-12-21 | 1966-10-27 | James A Umbarger | Pruefvorrichtung fuer Zuendanlagen von Brennkraftmaschinen | 
| US3452270A (en)* | 1965-10-23 | 1969-06-24 | William J Cook | Device for determining firing condition of spark plugs | 
| Publication number | Publication date | 
|---|---|
| FR2152166A5 (ja) | 1973-04-20 | 
| NL7210777A (ja) | 1973-03-13 | 
| US3763421A (en) | 1973-10-02 | 
| IT964345B (it) | 1974-01-21 | 
| DE2242423A1 (de) | 1973-03-15 |