Title:
Automatic program selector
Document Type and Number:
United States Patent 2368778

Inventors:
Purington, Ellison S.
Publication Date:
02/06/1945
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Referenced by:
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Assignee:
RCA CORP
Primary Class:
455/71
Other Classes:
346/37, 74/63, 455/151.100, 340/825.710, 455/158.400, 455/102, 455/256, 331/135, 74/10R, 318/478
International Classes:
G04C23/00




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