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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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FR374543D1906-04-191906-04-19Procédé de fabrication de filaments de tungstène ou de molybdène pour lampes électriques à incandescence
ExpiredFR374543A
(fr)