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发明名称
Bag closure and method of sealing a bag
摘要
申请公布号
US3323272(A)
申请公布日期
1967.06.06
申请号
US19640420720
申请日期
1964.12.23
申请人
W. R. GRACE & CO.
发明人
SPOLSINO PETER PAUL
分类号
B65B61/10
主分类号
B65B61/10
代理机构
代理人
主权项
地址
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