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LOUIS LHUILLERY
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LOUIS LHUILLERY
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Application filed by LOUIS LHUILLERYfiledCriticalLOUIS LHUILLERY
Application grantedgrantedCritical
Publication of FR450622ApublicationCriticalpatent/FR450622A/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
F21V21/16—Adjustable mountings using wires or cords
F21V21/18—Adjustable mountings using wires or cords operated by springs
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
FR450622D1912-11-151912-11-15Système permettant d'incliner et de relever à volonté une lampe ou un autre appareil d'éclairage
ExpiredFR450622A
(fr)
Système de projection par réflexion de la lumière d'appareils d'éclairage, latéralement et vers le haut ou le bas, à volonté, dans des directions et à des distances variables