发明名称 |
Apparatus for maintaining the security of a substrate |
摘要 |
An apparatus for maintaining security of a substrate having an optically verifiable mark including a partially demetallized metallic layer which forms a control graphic, a layer of optically active pigments adjacent the metallic layer, and an adhesive layer adjacent the layer of optically active pigments.
|
申请公布号 |
US2003087070(A1) |
申请公布日期 |
2003.05.08 |
申请号 |
US20020281816 |
申请日期 |
2002.10.28 |
申请人 |
HOLOGRAM INDUSTRIES (S.A.) |
发明人 |
SOUPARIS HUGUES |
分类号 |
B32B3/00;B42D15/00;B44F1/12;(IPC1-7):B32B3/00 |
主分类号 |
B32B3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|