| 发明名称 |
Dyed or tinted paper and method of making same |
| 摘要 |
A paper stock with at least one side dyed or tinted such that each side has a different color or shade to provide an indication of any erasures on the dyed or tinted side of the paper. Machinery and systems are disclosed for practicing the method of making the inventive paper.
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| 申请公布号 |
US2003221806(A1) |
申请公布日期 |
2003.12.04 |
| 申请号 |
US20030366747 |
申请日期 |
2003.02.14 |
| 申请人 |
NAUMANN LARRY J.;BAKER MICHAEL A. |
发明人 |
NAUMANN LARRY J.;BAKER MICHAEL A. |
| 分类号 |
D21H19/84;D21H21/28;(IPC1-7):D21H19/00 |
主分类号 |
D21H19/84 |
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