Telephone dial lock

Details Telephone dial lock Telephone dial lock

1976-01-07

1977-11-08

Brown, Thomas W.

70DIG72, H04M 166

Patent

active

040576973

ABSTRACT:
A telephone dial lock assembly including a shield plate, shackle and lock covers and immobilizes the dial of a trimline telephone instrument to render the telephone dialing mechanism inoperable for making outgoing calls. No interference is presented to the use of the telephone instrument for the receipt of incoming calls.

REFERENCES:
patent: 2700289 (1955-01-01), Morgan
patent: 3899647 (1975-08-01), Nachsi et al.

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