Wave range changing over device for radio receiving apparatus
United States Patent 2037159

Inventors:
Reinder, Dyksterhuis Popko
Publication Date:
04/14/1936
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Assignee:
RCA CORP
Primary Class:
455/188.100
Other Classes:
334/56, 455/193.100
International Classes:
H03J5/24; H03J5/00