| 发明名称 |
RETROREFLECTIVE SECURITY LAMINATES WITH PROTECTIVE COVER SHEETS |
| 摘要 |
A retroreflective security laminate, designed to be applied to the surface of a document over information thereon, and having a protective cover sheet comprising an abrasion-resistant outer layer and a support layer which is resistant to deformation under localized pressure. Also methods for making such laminates.
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| 申请公布号 |
CA2019274(A1) |
申请公布日期 |
1990.12.21 |
| 申请号 |
CA19902019274 |
申请日期 |
1990.06.19 |
| 申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
FAYKISH, LYNN E.;BINGHAM, WALLACE K. |
| 分类号 |
G02B5/128;(IPC1-7):B32B3/10;B42D15/10;G09F3/03;G09F3/10 |
主分类号 |
G02B5/128 |
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