Tubular door lock with a dead bolt adjustable in two sizes witho

Closure fasteners – Bolt casings

Patent

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Details

292DIG60, E05C 116

Patent

active

047369736

ABSTRACT:
This invention concerns a tubular door lock with a dead bolt adjustable in two sizes without anti-burglary device. It contains an extending shell covering outside of the basic shell and able to move inward or outward so as to alter the length of the dead bolt to the bottom of the extending shell into two sizes--so-called 60 mm and 70 mm--for fixing on a door.

REFERENCES:
patent: 4372594 (1983-02-01), Gater
patent: 4602490 (1986-07-01), Glass et al.
patent: 4662665 (1987-05-01), Lin

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