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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PHILIPS GES DEUTSCHE
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PHILIPS GES DEUTSCHE
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Application filed by PHILIPS GES DEUTSCHEfiledCriticalPHILIPS GES DEUTSCHE
Application grantedgrantedCritical
Publication of FR722696ApublicationCriticalpatent/FR722696A/fr
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V7/00—Reflectors for light sources
F21V7/04—Optical design
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
FR722696D1930-09-241931-09-08Appareil d'éclairage à réfiecteur diffusant
ExpiredFR722696A
(fr)