Closure fasteners – Keepers
Patent
1978-08-31
1981-02-03
Moore, Richard E.
Closure fasteners
Keepers
E05C 1310
Patent
active
042484634
ABSTRACT:
A security system for hotels, motels, and the like in which a dead bolt door lock must be in the locked position to enable electric accessories or devices such as lights or television sets to be utilized. The security system includes sensing and control means for sensing the position of the dead bolt lock and for responsibly enabling or disenabling the electric circuitry.
REFERENCES:
patent: 1097154 (1914-05-01), Wright
patent: 3354677 (1967-11-01), Green
Haller James R.
Moore Richard E.
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