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F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V15/00—Protecting lighting devices from damage
F21V15/02—Cages
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FR1040998D1951-07-281951-07-28Dispositif de protection pour lampes électriques
ExpiredFR1040998A
(fr)