Title:
Single channel radio communication system affording break-in operation
Document Type and Number:
United States Patent 2472585

Inventors:
Hailes, William D.
Publication Date:
06/07/1949
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Assignee:
GEN RAILWAY SIGNAL CO
Primary Class:
455/527
International Classes:
H04B1/54
US Patent References:
RE12073
1945082Voice operated switching
2064639Communicating system
2115914Communicating system
2199179Single channel two-way communication system
2407846Radio communication system


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