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REUNIE DE LAMPES A INCANDESCEN
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REUNIE DE LAMPES A INCANDESCEN
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Application filed by REUNIE DE LAMPES A INCANDESCENfiledCriticalREUNIE DE LAMPES A INCANDESCEN
Application grantedgrantedCritical
Publication of FR40132EpublicationCriticalpatent/FR40132E/fr
H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
H01J9/02—Manufacture of electrodes or electrode systems
H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
H01J9/042—Manufacture, activation of the emissive part
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Engineering & Computer Science
(AREA)
Manufacturing & Machinery
(AREA)
Manufacture And Refinement Of Metals
(AREA)
FR40132D1931-04-211931-04-21Procédé de fabrication de cathodes pour tubes de décharge
ExpiredFR40132E
(fr)