FR627899A - Procédé de fabrication de filaments hélicoïdaux en métal très réfractaire enroulés en hélice et ne s'affaissant presque pas
- Google Patents
Procédé de fabrication de filaments hélicoïdaux en métal très réfractaire enroulés en hélice et ne s'affaissant presque pas
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Application grantedgrantedCritical
Publication of FR627899ApublicationCriticalpatent/FR627899A/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
Landscapes
Engineering & Computer Science
(AREA)
Manufacturing & Machinery
(AREA)
Resistance Heating
(AREA)
FR627899D1926-02-151927-01-22Procédé de fabrication de filaments hélicoïdaux en métal très réfractaire enroulés en hélice et ne s'affaissant presque pas
ExpiredFR627899A
(fr)