| 摘要 |
A tear string envelope with the envelope made of an integral blank of sheet material and formed such that the front and rear portion of the envelope is interconnected by side flaps folded inwardly so that side edges and a lower and an upper folding edge are formed under leaving an upper insertion opening which can be closed by a gummed closing flap. The tear string extends at the inner side of an edge, with the tear string adhered at an edge different from that of the closing flap.
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