| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problem: a conventional thin single body bookmark or a string-shaped bookmark attached to a book is extracted from pages when the book is opened and inserted between pages when the book is closed; however, it is not easy to find a place to keep the single body bookmark extracted from the pages, and the bookmark attached to the book is sometimes left without being inserted into the book after the book is read. SOLUTION: A bookmark which gets out from a book when the book is opened and gets into the book when the book is closed is attached to the book cover of the book to solve the above problem. COPYRIGHT: (C)2009,JPO&INPIT
|
