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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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FR370790D1905-12-281905-12-28Procédé de fabrication de filaments de tungstène, molybdène ou alliages de ces deux métaux pour lampes à incandescence
ExpiredFR370790A
(fr)
Procédé pour la fabrication de filaments pour lampes électriques à incandescence avec des métaux peu fusibles tels que le wolfram, le molybdène, le thorium, etc.