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MO Valve Co Ltd
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MO Valve Co Ltd
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Application filed by MO Valve Co LtdfiledCriticalMO Valve Co Ltd
Application grantedgrantedCritical
Publication of FR933718ApublicationCriticalpatent/FR933718A/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
H01J1/26—Supports for the emissive material
FR933718D1945-09-241946-09-18Cathode pour dispositif à décharge électrique
ExpiredFR933718A
(fr)