Electric scintillating jeweler's advertising device
United States Patent 1771710

Inventors:
Gover, Alfred E.
Publication Date:
07/29/1930
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Assignee:
Gover, Alfred E.
Primary Class:
40/540
Other Classes:
362/806, 362/235, 63/15, 340/815.400, 63/33
International Classes:
G09F13/00