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发明名称
Ledekileenhet for foringsrör
摘要
申请公布号
NO960132(A)
申请公布日期
1996.07.15
申请号
NO19960000132
申请日期
1996.01.11
申请人
BAKER HUGHES INC
发明人
COON, ROBERT J.
分类号
E21B7/06;E21B7/08;E21B17/00;E21B34/14;E21B43/14;(IPC1-7):E21B7/08
主分类号
E21B7/06
代理机构
代理人
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地址
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