| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide something amusing when an eraser is used up. Ž<P>SOLUTION: A figure is made of a material not erased by rubbing, and covered with an eraser. The appearance is an ordinary erasure. However, when used up, only a part of the eraser not erased remains, and the figure appears. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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