| 发明名称 |
Copy restrictive documents |
| 摘要 |
<p>A media for restricting the copying of a document utilizing one or more microdots that are embedded in said document for providing a non-visual, but machine detectable mark or marks. The detected means for detecting the presence of one or more microdots in said document inhibits a copy machine from copying the document. <IMAGE></p> |
| 申请公布号 |
EP0789270(A1) |
申请公布日期 |
1997.08.13 |
| 申请号 |
EP19970200202 |
申请日期 |
1997.01.24 |
| 申请人 |
EASTMAN KODAK COMPANY |
发明人 |
GASPER, JOHN;SUTTON, JAMES EDWARD |
| 分类号 |
B42D15/10;B41M3/14;B42D15/00;B44F1/12;G03C5/08;G03G21/04;G06K19/06;H04N1/00;(IPC1-7):G03C5/08 |
主分类号 |
B42D15/10 |
| 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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