发明名称 Reclosable cross-bottom sack
摘要 A reclosable sack having a cross-bottom formed by folded-over side flaps has the confronting edges of the flaps spaced apart to define a slideway for a closure strip which is provided with a hole and is retained in the slideway by a cover sheet. When the closure strip is slid to a position where the hole is out of registry with emptying holes pierced in the material overlying and underlying the strip, the sack is substantially sealed.
申请公布号 US4270677(A) 申请公布日期 1981.06.02
申请号 US19790072679 申请日期 1979.09.05
申请人 WINDMOELLER & HOELSCHER 发明人 SCHMIDT, HORST
分类号 B65D33/38;B65D30/00;B65D30/12;B65D33/36;B65D75/58;B65D88/22;(IPC1-7):B65D30/12;B65D83/00 主分类号 B65D33/38
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