Control system
United States Patent 1977997

Inventors:
Bell, Patterson Edward
Publication Date:
10/23/1934
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Assignee:
RCA CORP
Primary Class:
84/464R
Other Classes:
239/12, 352/201, 315/201, 239/16, 239/17, 352/85, 704/276, 239/18, 236/69, 352/36
International Classes:
A63J17/00