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ROTHELI
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H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
H01K3/30—Repairing or regenerating used or defective lamps
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FR593864D1924-10-111924-11-25Procédé de remplacement des porte-fil fondus ou cassants, dans l'intérieur des lampes électriques à incandescence
ExpiredFR593864A
(fr)