| 摘要 |
PROBLEM TO BE SOLVED: To provide a projecting paper stopper capable of affordably inserting a subsequent plate by mounting a stopper on the plate and a paper in order to prevent projection of a printed book from a printing machine. SOLUTION: A stopper 1 is formed of plastics, vinyl chloride, iron and other metals so as to be bent and molded, and a tip thereof is brought into contact with a plate to be inserted, easily bent, and thin so as to be hardly broken or destroyed. The stopper is constituted with a camber so as to be easily inserted in a printed book 2. COPYRIGHT: (C)2006,JPO&NCIPI
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