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经营范围
发明名称
A centralizer for centralizing a well casing
摘要
申请公布号
GB2252118(B)
申请公布日期
1994.08.03
申请号
GB19920001681
申请日期
1992.01.27
申请人
* MOBIL OIL CORPORATION
发明人
KORWIN JOE * GOODWIN
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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