发明名称 |
FASTENER FOR USE IN AN OIL TOOL AND OIL TOOL PROVIDED WITH SUCH A FASTENER |
摘要 |
A fastener for use in an oil tool between a first member (20) and a second member (30), said fastener comprising an outer member (50) which, in use, extends between said first member (20) and said second member (30), characterised in that said outer member (50) is provided with an inner recess (51).
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申请公布号 |
WO9904131(A1) |
申请公布日期 |
1999.01.28 |
申请号 |
WO1998GB01964 |
申请日期 |
1998.07.20 |
申请人 |
WEATHERFORD/LAMB, INC.;LUCAS, BRIAN, RONALD |
发明人 |
HAUGEN, DAVID;ERIKSEN, ERIK, PETER, VESTERGAAD;MAHMOUD, SALAH |
分类号 |
E21B17/046;E21B17/06;(IPC1-7):E21B17/046 |
主分类号 |
E21B17/046 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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