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LAMPES FOTOS SOC D
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LAMPES FOTOS SOC D
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Application filed by LAMPES FOTOS SOC DfiledCriticalLAMPES FOTOS SOC D
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Publication of FR683979ApublicationCriticalpatent/FR683979A/fr
H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
H01K3/02—Manufacture of incandescent bodies
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Engineering & Computer Science
(AREA)
Manufacturing & Machinery
(AREA)
FR683979D1929-10-261929-10-26Procédé de spiralage des fils, notamment des filaments pour lampes à incandescence à atmosphère gazeuse
ExpiredFR683979A
(fr)