Title:
Radio operated fire alarm
Document Type and Number:
United States Patent 2566121

Inventors:
Decker, Donald P.
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Sponsored by:
Flash of Genius
Publication Date:
08/28/1951
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Referenced by:
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Assignee:
Decker, Donald P.
Primary Class:
340/288
Other Classes:
340/539.270, 340/539.100, 340/584, 455/92, 340/538, 340/538.170, 340/593
International Classes:
H04B1/034; H04B1/02
US Patent References:
1480243Signaling system
1752196Radio apparatus
1817753System for transmitting motion
2000185Alarm circuit
2037584Automatic fire alarm fuse-bulb
2107525Fire detecting and alarm mechanism
2312127Photoelectric controlled oscillator device
2428838Thermostatic fire detector
2440308Oscillator structure


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