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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
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General Engineering & Computer Science
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FR44513D1934-02-221934-02-22Système d'éclairage pour salles, lieux publics et autres
ExpiredFR44513E
(fr)