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发明名称
Downhole Apparatus
摘要
申请公布号
GB2354271(B)
申请公布日期
2003.09.17
申请号
GB20000022646
申请日期
2000.09.14
申请人
* WEATHERFORD/LAMB, INC.
发明人
PAUL DAVID * METCALFE
分类号
E21B43/08;E21B43/10;(IPC1-7):E21B43/10
主分类号
E21B43/08
代理机构
代理人
主权项
地址
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