Alarm-radio system
United States Patent 3249874
US Patent References:
Alert device for attaching to radio receiving sets
- - 2744194
Signal monitoring apparatus
- - 2879383
Power saving and decoding circuit for radio receiver
- - 2912574
Automatic emergency alert system
- - 3009059
Electrical warning system
- - 3010098
Alert device for attaching to radio receiving sets
- - 2744194
Signal monitoring apparatus
- - 2879383
Power saving and decoding circuit for radio receiver
- - 2912574
Automatic emergency alert system
- - 3009059
Electrical warning system
- - 3010098
Inventors:
Weber, Roger L.
Publication Date:
05/03/1966
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Export Citation:
Assignee:
CADRE IND CORP
Primary Class:
Other Classes:
455/343.100, 455/351, 340/333
International Classes:
G08B27/00; H04B1/28