Access control system

Details Access control system Access control system

1977-10-11

1979-03-06

Tollberg, Stanley H.

Check-actuated control mechanisms

Including noncontacting, relatively movable parts connected...

49 47, G07F 1714

Patent

active

041426207

ABSTRACT:
An access control system is disclosed wherein a passageway normally blocked by a gating structure such as a turnstile is opened to admit a person upon insertion of a coin into a coin slot, or upon insertion of an encoded card into a read head.

REFERENCES:
patent: 2714264 (1955-08-01), Odell
patent: 3559341 (1971-02-01), Alvarado

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