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Publication of FR784747ApublicationCriticalpatent/FR784747A/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
H01T13/39—Selection of materials for electrodes
FR784747D1934-04-161934-04-16Electrode centrale perfectionnée pour bougies d'allumage pour moteurs à explosion et autres applications
ExpiredFR784747A
(fr)