Title:
Radio apparatus
United States Patent 2200674

Inventors:
Mcdonald Jr., Eugene F.
Publication Date:
05/14/1940
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Assignee:
Mcdonald Jr., Eugene F.
Primary Class:
455/351
Other Classes:
343/872, 343/878, 343/880, 343/866, 343/702
International Classes:
H01Q1/24