Long distance telephone call limiting device

Details Long distance telephone call limiting device Long distance telephone call limiting device

1974-08-27

1976-02-10

Cooper, William C.

179189D, H04M 166

Patent

active

039379000

ABSTRACT:
A long distance telephone call limiting device is provided which prevents the dialing of a long distance telephone number. The device comprises a stopper mounted on the dial ring at the 0 position. The stopper engages an arrangement of cams and levers when an 0 or 1 is dialed as either the first or second digits in a telephone number. The engagement prevents the further dialing of the number. The device is reset by the placement of the handset into the cradle.

REFERENCES:
patent: 3511939 (1970-05-01), Aikawa
patent: 3555209 (1971-01-01), Ireland
patent: 3681532 (1972-08-01), Simon

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