Coin blocker

Details Coin blocker Coin blocker

1991-01-17

1991-10-01

Schreyer, Stafford D.

Telephonic communications

With check operated control

At terminal station

379450, 379457, 40323, 40336, 194353, H04M 1702

Patent

active

050540572

ABSTRACT:
A coin slot cover for telephones to indicate an out-of-order condition. A plate with a pair of locking tabs extending therefrom that may be inserted into the coin slot of a pay telephone.

REFERENCES:
patent: 4801271 (1989-01-01), Piper

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