Security device for deadlocks on doors

E - Fixed Constructions – 05 – B

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292/49, 292/57

E05B 13/00 (2006.01)

Patent

CA 1063646

ABSTRACT IN A NEW DEVICE AS A METHOD OF SECURING THE THUMBTURN OF A DEADLOCK ON A DOOR ?Y USING A FLEXIBLE HARD PLASTIC STRIP WITH SUITABLY PLACED APERATURES. THE LARGE APERATURE ACCOMODATES THE SHAFT OF THE INNER DOOR KNOB AND SIMULTANEOUSLY EMBRACES THE LOCKED DEADLOCKS THUMBTURN BY THE APPROPRIATE SMALLER APERATURE, THUS SECURING THE DEADLOCK FROM PERSONS ON THE OUTSIDE.

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