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发明名称
Trykkforsterkningsapparat for brönnverktöy
摘要
申请公布号
NO312211(B1)
申请公布日期
2002.04.08
申请号
NO19960003380
申请日期
1996.08.13
申请人
BAKER HUGHES INC
发明人
MYHRE, MORTEN
分类号
E21B23/04;E21B23/06;E21B33/127;F15B3/00;(IPC1-7):E21B23/04
主分类号
E21B23/04
代理机构
代理人
主权项
地址
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