System for controlling the use of a plurality of items

Details System for controlling the use of a plurality of items System for controlling the use of a plurality of items

1986-03-03

1988-06-28

Wolfe, Robert L.

Locks

Operating mechanism

Key

70456R, E05B 1100

Patent

active

047530928

ABSTRACT:
This invention is a system for controlling the use of keys and other items which allows only one item to be removed from a plurality of available items and an indicator of who made the selection. The present invention has particular application where a plurality of different people, such as salesmen, have access to a plurality of different items, such as keys. This control is accomplished through the provision of an unlocking means which cannot be relocked until the article contained therein has been replaced.

REFERENCES:
patent: 2220786 (1940-11-01), Grainger
patent: 2336936 (1943-12-01), Johnson
patent: 4367827 (1983-01-01), Keller
patent: 4472952 (1984-09-01), Hollowoll
patent: 4641509 (1987-02-01), Batchelor

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