Directional antenna system
United States Patent 2552816
US Patent References:
Antenna
- - 2188649

Antenna
- - 2190816


Inventors:
Root, John J.
Publication Date:
05/15/1951
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Assignee:
Root, John J.
Primary Class:
343/797
Other Classes:
343/876, 343/843, 343/802, 343/816, 343/702, 343/795
International Classes:
H01Q1/24