| 摘要 |
PURPOSE: A page finder is provided to enable users to find a page which they checked before without damaging the pages of a book using the page finder. CONSTITUTION: A page finder can be used by changing the size of a frame corresponding to the size of a book, and inserting the page finder to a page for a user to find the page afterwards. The user can use the page finder as a book mark and maintain the inserted state of the page finder for using when it is necessary. |
