| 摘要 |
PROBLEM TO BE SOLVED: To provide a bookmarker being automatically sandwiched between pages while being read in order to solve coming unknown how far the book is read when the booklet is carelessly unconsciously closed during reading the book. SOLUTION: By creasing a specific fold on an oblong sheet of paper to furnish that onto the surface of the booklet or a book cover or the like, the booklet is opened by action of the fold and by closing that, the bookmarker is automatically caught between the open pages. COPYRIGHT: (C)2008,JPO&INPIT
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