发明名称 DOCUMENT MADE FRAUD-PROOF BY AN IRREVERSIBLY DISTORTABLE WEAKENING PATTERN
摘要 The invention relates to a faud-proof document comprising a carrier and at least one marking arranged on the carrier, wherein in at least a part of the surface of the marking or along at least a part of the periphery of the marking a weakening pattern is arranged in the carrier which, when detached, results in a permanent and easily visible distortion of the pattern. When removing the glued-on passport photo or foil a forger will irrevocably distort the weakening pattern, this such that the regularity is permanently and visibly disturbed so that it is easy to ascertain that the document in question has been subjected to an attempted fraud.
申请公布号 CA2280793(A1) 申请公布日期 1998.08.27
申请号 CA19982280793 申请日期 1998.02.18
申请人 INDUSTRIAL AUTOMATION INTEGRATORS (IAI) B.V. 发明人 COBBEN, JOHANNES IGNATIUS MARIE
分类号 B42D15/10 主分类号 B42D15/10
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