Selective radio communication system for a plurality of stations
United States Patent 2469555
US Patent References:
Communication system
- - 2393291
Signaling system
- - 2398741
Radio traffic signaling system
- - 2429607
Communication system
- - 2393291
Signaling system
- - 2398741
Radio traffic signaling system
- - 2429607
Inventors:
Hitchcock, Forest B.
Publication Date:
05/10/1949
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Assignee:
GEN RAILWAY SIGNAL CO
Primary Class:
Other Classes:
455/400, 455/79
International Classes:
H04B7/26; H04Q7/36