Selective relay system
United States Patent 2497656
US Patent References:
System for selective calling of telegraph stations
- - 1943475
Signaling system
- - 2008909
Radio communication system
- - 2255162
Selective signal receiving circuit
- - 2411091
System for selective calling of telegraph stations
- - 1943475
Signaling system
- - 2008909
Radio communication system
- - 2255162
Selective signal receiving circuit
- - 2411091
Inventors:
Clarke, Varro J.
Publication Date:
02/14/1950
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Export Citation:
Assignee:
GEN ELECTRIC
Primary Class:
Other Classes:
361/166, 340/7.500, 361/183
International Classes:
H04L15/26; H04L15/00
Foreign References:
| GB172321A |