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发明名称
Downhole tool
摘要
申请公布号
GB2405168(B)
申请公布日期
2005.06.29
申请号
GB20040025879
申请日期
2002.03.28
申请人
* ROTECH HOLDINGS LIMITED
发明人
HECTOR FILIPPUS ALEXANDER * VAN DRENTHAM-SUSMAN;KENNETH RODERICK * STEWART;ROBERT GRAHAM * WHITE
分类号
E21B10/32;E21B23/04;E21B29/00;E21B37/00;(IPC1-7):E21B29/00;E21B37/02
主分类号
E21B10/32
代理机构
代理人
主权项
地址
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