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Priority claimed from US485899Aexternal-prioritypatent/US3328573A/en
Application filedfiledCritical
Publication of BE698339ApublicationCriticalpatent/BE698339A/fr
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V25/00—Safety devices structurally associated with lighting devices
F21V25/12—Flameproof or explosion-proof arrangements
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Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices
(AREA)