| 发明名称 |
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| 摘要 |
In the process according to our invention authenticating (code) marks are provided on paper, particularly a security or other financial instrument, by contacting laser radiation from a laser light source on the paper to form the authenticating marks. The objects of our invention are attained with an apparatus equipped with a pivotable mirror device which allows the laser radiation to be directed on sheets of paper arranged transverse to the transport direction on a paper sheet. A preservative medium can be used to coat and protect the marks particularly from mechanical abrasion. |
| 申请公布号 |
CH677290(A5) |
申请公布日期 |
1991.04.30 |
| 申请号 |
CH19860004006 |
申请日期 |
1986.10.07 |
| 申请人 |
OESTERREICHISCHE NATIONALBANK |
发明人 |
BERGER, ERICH;LANGER, HANS |
| 分类号 |
B41M3/14;B42D15/00;B42D25/29;D21H21/40;G07D7/00;G07D7/12;G07D7/20 |
主分类号 |
B41M3/14 |
| 代理机构 |
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代理人 |
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