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发明名称
FREE FILM SLEEVED VALVE IN MULTIWALL BAG
摘要
申请公布号
CA773924(A)
申请公布日期
1967.12.19
申请号
CAD773924
申请日期
申请人
CANADIAN INTERNATIONAL PAPER COMPANY
发明人
JEAN H. LESSARD
分类号
主分类号
代理机构
代理人
主权项
地址
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