Title:
Microwave identification of railroad cars
United States Patent 3247509
US Patent References:
Interrogator-responder signalling system
- - 3022492
Passive reflector for microwave links
- - 3041603
Corner reflector formed of taut flat reflecting elements with resilient peripheral tesion frames
- - 3041604
Signalling system
- - 3054100
Interrogator-responder signalling system
- - 3022492
Passive reflector for microwave links
- - 3041603
Corner reflector formed of taut flat reflecting elements with resilient peripheral tesion frames
- - 3041604
Signalling system
- - 3054100
Inventors:
Hamann, Omer F.
Boyd, Sherman H.
Boyd, Sherman H.
Publication Date:
04/19/1966
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Export Citation:
Assignee:
AMERICAN BRAKE SHOE CO
Primary Class:
Other Classes:
342/188
International Classes:
B61L25/04; G01S7/02; G01S13/75; B61L25/00; G01S13/00