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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Societe Francaise Radio Electrique
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Societe Francaise Radio Electrique
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Publication date
Application filed by Societe Francaise Radio ElectriquefiledCriticalSociete Francaise Radio Electrique
Application grantedgrantedCritical
Publication of FR928081ApublicationCriticalpatent/FR928081A/fr
H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
H01J1/02—Main electrodes
H01J1/13—Solid thermionic cathodes
H01J1/15—Cathodes heated directly by an electric current
H01J1/18—Supports; Vibration-damping arrangements
FR928081D1946-05-061946-05-06Perfectionnements aux entretoises des filaments des tubes à vide de grande puissance
ExpiredFR928081A
(fr)