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经营范围
发明名称
Casing centraliser
摘要
申请公布号
GB2347953(B)
申请公布日期
2002.07.24
申请号
GB20000011343
申请日期
1998.11.16
申请人
* BRUNEL OILFIELD SERVICES
发明人
STEPHEN * CHARLTON
分类号
E21B17/10;(IPC1-7):E21B17/10
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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