Set for producing a colored pattern

Details Set for producing a colored pattern Set for producing a colored pattern

1988-06-28

1990-10-02

Schwartz, Pamela R.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Identified solvent or dispersant for color-former, other...

503201, 503214, 503226, B41M 522

Patent

active

049607499

ABSTRACT:
The present invention provides a method of making a concavo-convex pattern such as a fingerprint on a given sheet without soiling the pattern with color, and a set for making the pattern.

REFERENCES:
patent: 3769045 (1973-10-01), Maierson et al.
patent: 3823022 (1974-07-01), Thomas
patent: 3957495 (1976-05-01), Teranishi et al.
patent: 4037007 (1977-07-01), Wood

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