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发明名称
CENTRALISER
摘要
申请公布号
EP1838947(A2)
申请公布日期
2007.10.03
申请号
EP20060709550
申请日期
2006.01.18
申请人
DOWNHOLE PRODUCTS PLC
发明人
CLARK, ALISTAIR, BERTRAM;KIRK, IAN, ALASTAIR;BARRON, WILLIAM
分类号
E21B17/10
主分类号
E21B17/10
代理机构
代理人
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