| 发明名称 |
METHOD OF MANUFACTURING A SECURITY ITEM |
| 摘要 |
A method of manufacturing a security item comprises coextruding at least two polymer plastics materials (6, 7) with different characteristics so as to form a substrate, neither material being biaxially oriented; and providing security indicia (14) on the substrate. |
| 申请公布号 |
CA2324287(C) |
申请公布日期 |
2007.12.04 |
| 申请号 |
CA19992324287 |
申请日期 |
1999.03.03 |
| 申请人 |
DE LA RUE INTERNATIONAL LIMITED |
发明人 |
CHATWIN, CHARLES EDWARD;FICE, CHRISTOPHER JOHN |
| 分类号 |
B42D15/10;B29C47/04;B29C47/06 |
主分类号 |
B42D15/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
