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ALLGEMEINES CHEMISCHES LABORATORIUM OSKAR H ARENDT
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ALLGEMEINES CHEMISCHES LABORATORIUM OSKAR H ARENDT
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Application filed by ALLGEMEINES CHEMISCHES LABORATORIUM OSKAR H ARENDTfiledCriticalALLGEMEINES CHEMISCHES LABORATORIUM OSKAR H ARENDT
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Publication of FR429072ApublicationCriticalpatent/FR429072A/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
H01J9/38—Exhausting, degassing, filling, or cleaning vessels
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FR429072D1910-09-051911-04-11Dispositif pour produire le vide dans les lampes à incandescence électriques
ExpiredFR429072A
(fr)