Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V37/00—Details of lighting devices employing combustion as light source, not otherwise provided for
F21V37/02—Special adaptation for protection against draughts ; Draft controllers
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Engineering & Computer Science
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Chemical & Material Sciences
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Combustion & Propulsion
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General Engineering & Computer Science
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Non-Portable Lighting Devices Or Systems Thereof
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Neuerungen an Lampen, bestehend in einem Oelbehälter mit durchbrochenen Zwischenwänden und äufserem Luftmantel, ferner in Vorwärmung der Verbrennungsluft