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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