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经营范围
发明名称
Expandable tubing
摘要
申请公布号
GB2335689(A)
申请公布日期
1999.09.29
申请号
GB19990013019
申请日期
1997.12.12
申请人
* PETROLINE WELLSYSTEMS LIMITED
发明人
PAUL DAVID * METCALFE
分类号
E21B43/08;E21B43/10;(IPC1-7):E21B17/08
主分类号
E21B43/08
代理机构
代理人
主权项
地址
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