FR370055A - Dispositif servant à déplacer verticalement les lampes électriques et muni d'organes de connexion pour le passage du courant
- Google Patents
Dispositif servant à déplacer verticalement les lampes électriques et muni d'organes de connexion pour le passage du courant
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RICHARD CHARLES HELLER
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RICHARD CHARLES HELLER
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Publication of FR370055ApublicationCriticalpatent/FR370055A/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
F21V21/36—Hoisting or lowering devices, e.g. for maintenance
F21V21/38—Hoisting or lowering devices, e.g. for maintenance with a cable
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Engineering & Computer Science
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General Engineering & Computer Science
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FR370055D1906-09-271906-09-27Dispositif servant à déplacer verticalement les lampes électriques et muni d'organes de connexion pour le passage du courant
ExpiredFR370055A
(fr)