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LAMPE OSRAM
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LAMPE OSRAM
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Publication of FR456467ApublicationCriticalpatent/FR456467A/fr
C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
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FR456467D1912-11-161913-04-09Procédé et dispositifs pour la fabrication des ampoules à réflecteurs pour lampes électriques à incandescence
ExpiredFR456467A
(fr)