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Envelope with tear thread or strip, has thread attached to inside of fold line between envelope and flap
Envelope with tear thread or strip, has thread attached to inside of fold line between envelope and flap
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机译:带有撕裂线或撕条的信封,信封和折页之间的折线内部有缝线
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摘要
The tear thread (3) is attached by e.g. adhesive to the inside of the fold line between the envelope (1) and flap (2). Once the envelope has been closed and sealed, the thread protrudes from the top side edge. Pulling the thread causes the envelope to be opened along its top side edge.
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