FR433131A - Perfectionnements à la préparation des corps métalliques réfractaires employés à la fabrication des lampes à incandescence
- Google Patents
Perfectionnements à la préparation des corps métalliques réfractaires employés à la fabrication des lampes à incandescence
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Compagnie Francaise Thomson Houston SA
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Compagnie Francaise Thomson Houston SA
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Application grantedgrantedCritical
Publication of FR433131ApublicationCriticalpatent/FR433131A/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
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Engineering & Computer Science
(AREA)
Manufacturing & Machinery
(AREA)
FR433131D1911-08-101911-08-10Perfectionnements à la préparation des corps métalliques réfractaires employés à la fabrication des lampes à incandescence
ExpiredFR433131A
(fr)