E - Fixed Constructions – 05 – B
Patent
E - Fixed Constructions
05
B
E05B 17/00 (2006.01) E05B 13/00 (2006.01)
Patent
CA 2438836
An accessory for "THE ORIGINAL DOOR SENTRY" CIPO filing certificate application no. 2,424,547. This invention is a specifically designed steel cover for which its only intended use is to enhance the effectiveness of the above mentioned as a security device, and without altering its original design, allowing it to maintain its integrity as a security apparatus that does not interfere with the normal use of a door and its locks.
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