Directional antenna system
United States Patent 2339234

Inventors:
Polydoroff, Wladimir J.
Publication Date:
01/11/1944
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Assignee:
Polydoroff, Wladimir J.
Primary Class:
343/788
Other Classes:
343/867, 343/869, 336/130
International Classes:
H01Q7/06; H01Q7/00