FR520517A - Spark plug improvements - Google Patents
Spark plug improvementsInfo
- Publication number
- FR520517A FR520517A FR520517A FR520517DA FR520517A FR 520517 A FR520517 A FR 520517A FR 520517 A FR520517 A FR 520517A FR 520517D A FR520517D A FR 520517DA FR 520517 A FR520517 A FR 520517A
- Authority
- FR
- France
- Prior art keywords
- spark plug
- spark
- plug
- plug improvements
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
- H01T13/24—Sparking plugs characterised by features of the electrodes or insulation having movable electrodes
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB520517X | 1914-10-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR520517A true FR520517A (en) | 1921-06-27 |
Family
ID=10462458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR520517A Expired FR520517A (en) | 1914-10-20 | 1920-07-09 | Spark plug improvements |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR520517A (en) |
-
1920
- 1920-07-09 FR FR520517A patent/FR520517A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR520517A (en) | Spark plug improvements | |
FR462544A (en) | Spark plug improvements | |
FR458050A (en) | Spark plug improvements | |
FR20822E (en) | Spark plug improvements | |
FR20815E (en) | Spark plug improvements | |
FR486821A (en) | Spark plug improvements | |
FR488765A (en) | Spark plug improvements | |
FR492626A (en) | Spark plug improvements | |
FR475247A (en) | Improvements made to spark plugs | |
FR19515E (en) | Improvement in spark plugs | |
FR475347A (en) | Improvement in spark plugs | |
FR484395A (en) | Spark plug improvements | |
FR482711A (en) | Spark plug improvements | |
FR510851A (en) | Spark plug improvements | |
FR418742A (en) | Spark plug improvements | |
FR430631A (en) | Spark plug improvements | |
FR432612A (en) | Spark plug improvements | |
FR432613A (en) | Spark plug improvements | |
FR22311E (en) | Spark plug improvements | |
FR22291E (en) | Spark plug improvements | |
FR487722A (en) | Spark plug improvements | |
FR489424A (en) | Spark plug improvements | |
FR498824A (en) | Spark plug improvements | |
FR483244A (en) | Improvement in spark plugs | |
FR508496A (en) | Improvement in spark plugs |