| 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(A1) |
申请公布日期 |
1999.09.16 |
| 申请号 |
CA19992324287 |
申请日期 |
1999.03.03 |
| 申请人 |
DE LA RUE INTERNATIONAL LIMITED |
发明人 |
FICE, CHRISTOPHER JOHN;CHATWIN, CHARLES EDWARD |
| 分类号 |
B29C47/04;B42D15/10;(IPC1-7):B42D15/10 |
主分类号 |
B29C47/04 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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