发明名称 |
Improvements in apparatus for forming watermarks in paper. |
摘要 |
<p>A paper machine having an endless foraminous element for engagement with a fibrous web during formation of the web into paper, said element having bonded thereto with flexible bonds, spaced flexible components each representing a surface configuration adapted to generate a watermark in said paper as a result of the engagement of said foraminous element with said web.</p> |
申请公布号 |
EP0367520(A2) |
申请公布日期 |
1990.05.09 |
申请号 |
EP19890311148 |
申请日期 |
1989.10.27 |
申请人 |
THE WIGGINS TEAPE GROUP LIMITED |
发明人 |
RADVAN, BRONISLAW;ALLEN, DAVID ROBERT |
分类号 |
D21F1/44;D21H21/26 |
主分类号 |
D21F1/44 |
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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