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发明名称
Downhole tool
摘要
申请公布号
GB0026458(D0)
申请公布日期
2000.12.13
申请号
GB20000026458
申请日期
2000.10.28
申请人
FRENCH OILFIELD SERVICES LIMITED
发明人
分类号
E21B17/06;E21B23/00;E21B23/02;E21B43/10;E21B47/09
主分类号
E21B17/06
代理机构
代理人
主权项
地址
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