Printed matter – Having revealable concealed information – fraud preventer or... – In incorporated magnetic material
Patent
1997-12-19
2000-07-04
Pitts, Andrea L.
Printed matter
Having revealable concealed information, fraud preventer or...
In incorporated magnetic material
283 85, 283 94, 283107, 283901, B42D 1500
Patent
active
060827785
ABSTRACT:
The invention relates to an identity card or similar data carrier having a copy protection element. The copy protection element contains a metal layer in which markings are incorporated with the aid of a laser beam by completely removing the metal layer in the area of the markings. The copy protection effect is produced by combining at least partial areas of an additional layer with the metal layer so that the marks are not electrophotographically reproducible, or not in accordance with the original, as such or in combination with the metal layer.
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Carter Monica Smith
Giesecke & Devrient GmbH
Pitts Andrea L.
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