Identification card and a method of producing same

Details Identification card and a method of producing same Identification card and a method of producing same

1981-12-14

1985-06-18

Bell, Paul A.

Printed matter

Method

346 76L, 3461351, 283100, 283114, 283 75, B42D 1500, G01D 1510, G01D 1534

Patent

active

045237778

ABSTRACT:
An identification card having information applied in the form of patterns, letters, numbers and/or images, formed by interruptions, in the homogeneity of different colored layer areas arranged superjacently on the identification card. The colored information can be produced by selectively removing the color layers by means of a controlled laser beam or by blurring or other chemical reactions induced by said beam. Thus identification cards can be produced having a high standard of security in spite of the simplicity of their production.

REFERENCES:
patent: 3391479 (1968-07-01), Buzzell et al.
patent: 3785970 (1973-09-01), Annenberg
patent: 3897964 (1975-08-01), Oka
patent: 3930924 (1976-01-01), Oka et al.
patent: 3995741 (1976-12-01), Henderson
patent: 4037007 (1977-07-01), Wood
patent: 4066280 (1978-01-01), LaCapria
patent: 4126373 (1978-11-01), Moraw
patent: 4143891 (1979-03-01), Neubauer
patent: 4243734 (1981-01-01), Dillon
patent: 4325981 (1982-03-01), Sugiura et al.

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