Light-controlled actuating device
United States Patent 2187012

Inventors:
Edward, Brenner
Publication Date:
01/16/1940
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Assignee:
Edward, Brenner
Primary Class:
477/13
Other Classes:
49/136, 361/175, 361/166, 250/214R, 250/221, 49/25, 312/215, 185/37, 312/209
International Classes:
E05B49/00; E05F15/20