| 摘要 |
PROBLEM TO BE SOLVED: To provide a bag making envelope formed in a bag shape by folding its periphery with a delivery proof without creating an irregularity on its surface. SOLUTION: A perforation 31 is formed on a back face piece 10c forming a bag making envelope, and delivery proofs 30a, 30b are partitioned and formed separably from the other area by the perforation 31. COPYRIGHT: (C)2006,JPO&NCIPI
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