Portable data carrier incorporating manually presettable process

Details Portable data carrier incorporating manually presettable process Portable data carrier incorporating manually presettable process

1988-09-15

1989-08-22

Trafton, David L.

Registers

Systems controlled by data bearing records

Credit or identification card systems

235492, 235379, 362708, 902 26, G06K 500

Patent

active

048598372

ABSTRACT:
A portable pocketsize data carrier, also referred to as pay token, stores more than one bank and/or credit account number in selectably accessable registers. The pay token is equipped with four or five selector buttons for carrying out a large variety of performance modifications. Aided by visual feedback through an integrated display window, the user may using a single button

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patent: 4005388 (1977-01-01), Morley et al.
patent: 4105156 (1978-08-01), Dethloff
patent: 4291222 (1981-09-01), Grottrup
patent: 4341951 (1982-07-01), Renton
patent: 4453074 (1984-06-01), Weinstein
patent: 4454414 (1984-06-01), Benton
patent: 4460965 (1984-07-01), Trehn et al.

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