Telephone lock

Details Telephone lock Telephone lock

1989-12-15

1990-10-23

Wolfe, Robert L.

Locks

Portable

70 57, 70DIG72, 439133, E05B 7300

Patent

active

049642847

ABSTRACT:
A telephone lock for preventing the plug of a telephone from being inserted into a corresponding line jack unit comprises a locking means including a shank member of a suitable length and size to be accommodated in the socket of a line jack unit in substitution for a telephone plug proper. The shank member has a movable locking member mounted thereon which is arranged to be in use moved by the locking means to engage a part of the line jack unit socket to prevent removal of the telephone lock from the line jack unit.

REFERENCES:
patent: 4311883 (1982-01-01), Kidney
patent: 4846708 (1989-07-01), Marson
patent: 4862500 (1989-08-01), May
patent: 4870840 (1989-10-01), Klein

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