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Carl Zeiss AG
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Carl Zeiss AG
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Publication of FR674592ApublicationCriticalpatent/FR674592A/fr
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V23/00—Arrangement of electric circuit elements in or on lighting devices
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
FR674592D1928-05-101929-05-04Appareil d'éclairage comportant un miroir concave et une lampe à incandescence à verre à rayonnement diffus
ExpiredFR674592A
(fr)