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发明名称
Multiwall bag tear strips
摘要
申请公布号
US2943781(A)
申请公布日期
1960.07.05
申请号
US19560582020
申请日期
1956.05.01
申请人
ST. REGIS PAPER COMPANY
发明人
GOODRICH JOHN J.
分类号
B31B1/90;B65D75/68
主分类号
B31B1/90
代理机构
代理人
主权项
地址
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