发明名称 |
Improvements in security documents |
摘要 |
The invention relates to improvements in security substrates for security documents. The security substrate has at least two sets of regions having a machine detectable characteristic, in which only a first set of regions is applied to a first surface of the substrate. At least two sets of regions together form a machine readable code. |
申请公布号 |
GB2478537(B) |
申请公布日期 |
2013.07.24 |
申请号 |
GB20100003824 |
申请日期 |
2010.03.08 |
申请人 |
DE LA RUE INTERNATIONAL LIMITED |
发明人 |
JAMES PETER SNELLING;FERN DOWDELL |
分类号 |
B42D15/00;G06K1/12;G06K19/06 |
主分类号 |
B42D15/00 |
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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