发明名称 Closure assembly having a tear template
摘要 A tear template is provided for use in an easy-open container closure system of the type employing an exterior tape and an interior sheet material. The tear template, which is located between the exterior tape and interior sheet material, advantageously provides a closure system which is better able to withstand excessive internal container pressures without detracting from the easy open character of the closure system.
申请公布号 US4163506(A) 申请公布日期 1979.08.07
申请号 US19780953883 申请日期 1978.10.23
申请人 MINNESOTA MINING & MANUFACTURING 发明人 PATTERSON, RICHARD A
分类号 B65D17/50;(IPC1-7):B65D41/02 主分类号 B65D17/50
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