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发明名称
OPBLAASBARE PAKKINGINRICHTING EN AFDICHTWERKWIJZE.
摘要
申请公布号
NL9101426(A)
申请公布日期
1992.03.16
申请号
NL19910001426
申请日期
1991.08.23
申请人
BAKER HUGHES INCORPORATED TE HOUSTON, TEXAS, VER. ST. V. AM.
发明人
分类号
E21B33/127
主分类号
E21B33/127
代理机构
代理人
主权项
地址
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