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.)
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J De Saint Martin & Chabrolle
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J De Saint Martin & Chabrolle
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Application filed by J De Saint Martin & ChabrollefiledCriticalJ De Saint Martin & Chabrolle
Application grantedgrantedCritical
Publication of FR567771ApublicationCriticalpatent/FR567771A/fr
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
H01T13/34—Sparking plugs characterised by features of the electrodes or insulation characterised by the mounting of electrodes in insulation, e.g. by embedding
FR567771D1923-06-231923-06-23Perfectionnements apportés aux bougies d'allumage pour moteurs à explosions
ExpiredFR567771A
(fr)