Credit card

Details Credit card Credit card

1991-06-24

1993-11-09

Bell, Paul A.

Printed matter

Having revealable concealed information, fraud preventer or...

Having specific color

283904, B42D 1500

Patent

active

052596494

ABSTRACT:
Credit cards intended to eliminate or at least greatly reduce misuse by unauthorized persons. The card bears in addition to the correct identification number a number of further digits or letters, so that a person obtaining such card in an unauthorized manner will not be able to identify the correct number. The rightful owner has only to remember which of the numbers or letters is not part of the correct identification code. A card may be provided with a number of identification codes, encircled by a variety of different geometrical shapes, thus the owner has only to remember the shape in order to identify his correct access code.

REFERENCES:
patent: 4824144 (1989-04-01), Tasma
patent: 4947027 (1990-08-01), Golightly

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