| 摘要 |
In the [higher priced grade of books, which for example are known generally as the "hard copies" as distinguished from the more economically priced] so-called "paper backs", it is customary to protect the books [by] with A so-called [dust shield or] protective cover. These protective covers are generally highly colored and carry a pictorial image of the author, or of some primary incident in the story. When it is necessary to put down the book without finishing reading it in one sitting, it is desirable to have a book marker so that one's place can be quickly and easily found so that the story can be continued without regression. Frequently a portion of a page of newspaper or magazine is torn off to provide a small book marker. By the present invention a narrow perforated [edge] strip of the [fold under flap of the book] protective cover may be torn off from the [ dust shield or] protective cover and used as a book marker to mark one's place in the book. As frequently happens, two parties in a family may be alternately reading the same book simultaneously. To accommodate this contingency, [the marginal edges on] both [sides] fore edges of the [dust shields] protective cover can have perforated [sections] strips which can be torn of to provide two book markers. Opposite [sides] fore edges of the [dust shield] protective cover can conveniently be colored differently so that it is possible to readily distinguish one's book marker from the other. [Similary, the outer] The fore edges of [so-called] paper backs can be turned in and perforated to render readily accessible book markers available.
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