发明名称 Security Element and Method for Producing the Same
摘要 The invention relates to a security element ( 30 ) for securing valuables. Said element comprises at least one at least partial first layer ( 13 ) from a cholesteric liquid-crystalline material, an at least partial second layer ( 14 ) from a liquid-crystal material, and an at least partial additional layer ( 22 ) having a machine-readable feature that is at least partially covered by the first and second layer from the liquid-crystalline material.
申请公布号 US2008054621(A1) 申请公布日期 2008.03.06
申请号 US20050573506 申请日期 2005.08.08
申请人 GIESECKE & DEVRIENT GMBH 发明人 BURCHARD THEODOR;HOFFMULLER WINFRIED;PILLO THORSTEN;HEIM MANFRED;KRETSCHMAR FRIEDRICH;RUCK JURGEN
分类号 B42D15/00 主分类号 B42D15/00
代理机构 代理人
主权项
地址