Radio frequency transmitter
United States Patent 2845536

Inventors:
Richard, Goldstein
Publication Date:
07/29/1958
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Assignee:
PERMA POWER COMPANY
Primary Class:
331/47
Other Classes:
341/176, 331/54, 331/164, 331/170, 455/120, 331/64, 331/48, 334/37
International Classes:
E05F15/20
US Patent References:
2695951Remote-control device