AU149105B2 - Improvements in or relating to methods of and devices for providing electric lamp bulbs withan inner layer of very small light-diffusing particles
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Improvements in or relating to methods of and devices for providing electric lamp bulbs withan inner layer of very small light-diffusing particles
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Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
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Publication of AU149105B2publicationCriticalpatent/AU149105B2/en
Publication of AU136451ApublicationCriticalpatent/AU136451A/en
AU1364/51A1951-03-14Improvements in or relating to methods of and devices for providing electric lamp bulbs withan inner layer of very small light-diffusing particles
ExpiredAU149105B2
(en)
Improvements in or relating to methods of applying light-diffusing layers to glass surfaces and glass objects, more particularly, incandescent lamps having alight-diffusing layer obtained by these methods