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发明名称
OPPBLAASBART PAKNINGSELEMENT.
摘要
申请公布号
NO910983(A)
申请公布日期
1991.09.16
申请号
NO19910000983
申请日期
1991.03.12
申请人
BAKER HUGHES INC
发明人
MODY RUSTOM K;HALBARDIER FLOYD A
分类号
E21B33/127;(IPC1-7):E21B33/127
主分类号
E21B33/127
代理机构
代理人
主权项
地址
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