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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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Manufacturing & Machinery
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FR478693D1914-07-291915-05-14Procédé pour la fabrication de filaments métalliques pour lampes électriques à incandescence et autres usages
ExpiredFR478693A
(fr)