Telephone disabling device

Details Telephone disabling device Telephone disabling device

1977-01-14

1978-03-28

Stewart, David L.

H04M 166

Patent

active

040816303

ABSTRACT:
A telephone disabling device for preventing outgoing calls while permitting a two-way conversation includes a disabling member having a cover portion extending over the dialing device. The member is hooked under a forward part of the telephone and the rear end thereof extends between the laterally spaced uprights forming the hand set cradle. A key lock carried by the disabling member is extendible into a rearwardly opening cavity in the telephone to prevent removal of the member. A modified form of disabling device prevents both outgoing calls and two-way conversation.

REFERENCES:
patent: 3301969 (1967-01-01), Darling
patent: 3469041 (1969-09-01), Winston
patent: 3823277 (1974-07-01), Rudolph

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