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Publication of BE673243ApublicationCriticalpatent/BE673243A/fr
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V31/00—Gas-tight or water-tight arrangements
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Engineering & Computer Science
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General Engineering & Computer Science
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Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices
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