| 发明名称 |
SECURITY ELEMENT AND METHOD FOR PRODUCING THE SAME |
| 摘要 |
The invention relates to a security element for security documents, bank notes, identity cards, or the like. Said security element comprises a substrate on which at least two metallic layers having different optical densities are arranged. |
| 申请公布号 |
WO03091042(A2) |
申请公布日期 |
2003.11.06 |
| 申请号 |
WO2003EP04221 |
申请日期 |
2003.04.23 |
| 申请人 |
GIESECKE & DEVRIENT GMBH;HEIM, MANFRED;SCHMITZ, CHRISTIAN |
发明人 |
HEIM, MANFRED;SCHMITZ, CHRISTIAN |
| 分类号 |
B42D25/00;B42D25/21;G03H1/18 |
主分类号 |
B42D25/00 |
| 代理机构 |
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