发明名称 forma de violaÇço evidente e mÉtodo de indicar separaÇço de um primeiro laminado transparente e um segundo laminado.
摘要 Confidential information is printed on an upper transparent laminate. A scrambling pattern is associated with a lower laminate. The upper surface of the lower laminate and the lower surface of the upper laminate are complementary in shape such that the upper laminate appears transparent, but alters to appear translucent when separated from the lower laminate. This provides a tamper-evident mechanism for indicating separation of the laminates.
申请公布号 BR0009023(B1) 申请公布日期 2008.11.18
申请号 BR20000009023 申请日期 2000.03.14
申请人 发明人 BERNARD WILLEM SCHEGGETMAN;CHARLES L. CASAGRANDE;JOEL BRYAN VAN BOOM
分类号 B42D15/00;B44C3/02;B44F1/06;G09C5/00 主分类号 B42D15/00
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