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F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
F21L4/00—Electric lighting devices with self-contained electric batteries or cells
F21L4/08—Electric lighting devices with self-contained electric batteries or cells characterised by means for in situ recharging of the batteries or cells
F21L4/085—Pocket lamps
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FR652964D1928-04-171928-04-17Perfectionnements apportés aux lampes de poche et autres lampes à accumulateurs
ExpiredFR652964A
(fr)