Document with anti-forgery and anti-falsification means

Details Document with anti-forgery and anti-falsification means Document with anti-forgery and anti-falsification means

1996-12-26

1999-01-05

Krynski, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428204, 4284111, 428913, 428914, 283 72, 283 74, 283 91, B32B 900

Patent

active

058559892

ABSTRACT:
The present invention relates to a document with counterfeit- and forgery-preventing means particularly for valued papers and the like, which comprise a sheet-like element having, on at least one face, a graphic marking that is visible in reflected light. The particularity of the invention resides in the fact that it comprises at least one variation in the thickness of said sheet-like element which provides a graphic representation that can be viewed against the light and is complementary with respect to the at least one graphic marking.

REFERENCES:
patent: 5093184 (1992-03-01), Edwards
patent: 5438403 (1995-08-01), Hoshino et al.
patent: 5583631 (1996-12-01), Lazzerni
patent: 5678863 (1997-10-01), Knight et al.
patent: 5704651 (1998-01-01), Phillips
patent: 5762378 (1998-06-01), Phillips
patent: 5772248 (1998-06-01), Phillips

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