Title:
Radio frequency antenna
United States Patent 2654842
US Patent References:
Oil treating apparatus
- - 2226470
Transmission and/or the reception of electromagnetic waves
- - 2297202
Wave-signal directional coupler
- - 2575571
Oil treating apparatus
- - 2226470
Transmission and/or the reception of electromagnetic waves
- - 2297202
Wave-signal directional coupler
- - 2575571
Inventors:
Engelmann, Herbert F.
Publication Date:
10/06/1953
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Export Citation:
Assignee:
FED TELECOMM LAB INC
Primary Class:
Other Classes:
343/860, 333/237
International Classes:
H01Q13/26; H01Q13/20