Security system

Closure fasteners – Keepers

Patent

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Details

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

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