Locks – Operating mechanism – Key
Patent
1977-12-28
1979-03-13
Wolfe, Robert L.
Locks
Operating mechanism
Key
E05B 1500
Patent
active
041435311
ABSTRACT:
A disposable plug assembly to be used as a substitute for the removable core in a lock cylinder, as during the construction of a building, prior to installation of the final cores, the disposable core including a part which can be used to operate a cam or tail on the cylinder for actuating a latch bolt.
REFERENCES:
patent: 3715899 (1973-02-01), McCullum
Walter Kidde & Company, Inc.
Wolfe Robert L.
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