| 摘要 |
The invention provides a writing aid comprising a contoured surface having a plurality of relatively depressed surface portions and raised ridges or surface regions at least partially surrounding each depressed surface portion at a level differing therefrom by an amount rendering transition between a ridge or region and a depressed portion tangible to a person through a hand-held writing implement traversing the surface. The contoured surface may be provided by embossing writing paper or embedding threads therein, or may be provided on a substrate or backing sheet for a piece of plain paper.
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