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LAMPES FOTOS SOC D
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LAMPES FOTOS SOC D
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Publication of FR736616ApublicationCriticalpatent/FR736616A/fr
H01J17/00—Gas-filled discharge tubes with solid cathode
H01J17/02—Details
H01J17/30—Igniting arrangements
FR736616D1932-05-041932-05-04Perfectionnements aux tubes à décharge électrique spécialement à ceux pour télévision et aux relais à luminescence
ExpiredFR736616A
(fr)