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发明名称
Downhole apparatus
摘要
申请公布号
GB2304132(B)
申请公布日期
2000.02.23
申请号
GB19960016404
申请日期
1996.08.05
申请人
CLIVE JOHN * FRENCH;* OCRE
发明人
CLIVE JOHN * FRENCH
分类号
E21B23/00;E21B23/04;E21B23/06;E21B33/127;E21B34/00;(IPC1-7):E21B34/06
主分类号
E21B23/00
代理机构
代理人
主权项
地址
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