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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General Electric Co PLC
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General Electric Co PLC
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Application filed by General Electric Co PLCfiledCriticalGeneral Electric Co PLC
Application grantedgrantedCritical
Publication of FR1183546ApublicationCriticalpatent/FR1183546A/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
H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
H01J1/28—Dispenser-type cathodes, e.g. L-cathode
FR1183546D1956-10-181957-09-28Perfectionnements aux dispositifs à décharge électrique
ExpiredFR1183546A
(fr)