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Egyesuelt Izzolampa es Villamossagi Rt
Original Assignee
Egyesuelt Izzolampa es Villamossagi Rt
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Application filed by Egyesuelt Izzolampa es Villamossagi RtfiledCriticalEgyesuelt Izzolampa es Villamossagi Rt
Application grantedgrantedCritical
Publication of FR791661ApublicationCriticalpatent/FR791661A/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
FR791661D1934-06-281935-06-24Cathode à chauffage indirect pour lampes ou tubes à décharge électrique
ExpiredFR791661A
(fr)