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发明名称
SECURITY ELEMENT AND METHOD FOR PRODUCING IT
摘要
The invention relates to a security element for security papers, bank notes, ID cards or the like, with a substrate, on which are disposed at least two metal layers, the metal layers having different optical densities.
申请公布号
CA2483467(C)
申请公布日期
2013.06.18
申请号
CA20032483467
申请日期
2003.04.23
申请人
GIESECKE & DEVRIENT GMBH
发明人
HEIM, MANFRED;SCHMITZ, CHRISTIAN
分类号
B42D25/00;B42D25/21;G03H1/18;G09F3/02
主分类号
B42D25/00
代理机构
代理人
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