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FRITHJOF DREVDAL
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FRITHJOF DREVDAL
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Publication of FR328894ApublicationCriticalpatent/FR328894A/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
H01T13/54—Sparking plugs having electrodes arranged in a partly-enclosed ignition chamber
FR328894D1903-01-281903-01-28Perfectionnements aux bougies électriques destinées à l'allumage du mélange détonant dans les moteurs à explosions
ExpiredFR328894A
(fr)