Key deposit return machine

Details Key deposit return machine Key deposit return machine

1981-01-26

1983-02-01

Tollberg, Stanley H.

Check-actuated control mechanisms

Including noncontacting, relatively movable parts connected...

221 66, G07F 702

Patent

active

043710700

ABSTRACT:
A deposit for a key is returned after the key is deposited in the machine where an element on the key unlocks the coin control mechanism.

REFERENCES:
patent: 2997151 (1961-08-01), Chandler
patent: 3165691 (1965-01-01), McClanahan

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