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Publication of FR447732ApublicationCriticalpatent/FR447732A/fr
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
F21V21/14—Adjustable mountings
F21V21/22—Adjustable mountings telescopic
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Engineering & Computer Science
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General Engineering & Computer Science
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FR447732D1912-08-291912-08-29Dispositif d'enrayage ou d'arret à frottement pour tubes à tirage de lampes et autres objets réglables
ExpiredFR447732A
(fr)