Document with anti-counterfeiting means to prevent reproducibili

Details Document with anti-counterfeiting means to prevent reproducibili Document with anti-counterfeiting means to prevent reproducibili

1996-07-17

1999-02-09

Han, Frances

Printed matter

Having revealable concealed information, fraud preventer or...

Utilizing superposed layers

283 92, 283901, 283902, 283114, B42D 1500

Patent

active

058684328

ABSTRACT:
A document with anti-counterfeiting means to prevent reproducibility by photocopying, having a sheet-like element that has, on its face, at least one region whereon an image that is visible or not visible in the visible-light range is printed and has, on the back, in register with the image provided on the face, the same image, printed with an ink that is not visible in the visible-light range.

REFERENCES:
patent: 5087507 (1992-02-01), Heinzer
patent: 5271645 (1993-12-01), Wicker
patent: 5425978 (1995-06-01), Berneth et al.

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