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发明名称
SEAL BARRIERS FOR THERMOPLASTIC BAGS
摘要
申请公布号
CA791525(A)
申请公布日期
1968.08.06
申请号
CAD791525
申请日期
申请人
UNION CARBIDE CORPORATION
发明人
WILLIAM L. CALVERT
分类号
主分类号
代理机构
代理人
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