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H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
H01T1/00—Details of spark gaps
FR721036D1930-08-051931-08-04Perfectionnements apportés aux éclateurs, notamment à ceux destinés à la production des courants de haute fréquence
ExpiredFR721036A
(fr)