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经营范围
发明名称
HYDRAULIC DRILLING RIG
摘要
申请公布号
EP1108109(B1)
申请公布日期
2005.11.02
申请号
EP19990939285
申请日期
1999.08.20
申请人
995123 ALBERTA LTD.
发明人
BYRT, HARRY;MCCONNELL, DAVE;DESAI, VINOD
分类号
E21B15/02;E21B19/09;E21B19/14;(IPC1-7):E21B15/00
主分类号
E21B15/02
代理机构
代理人
主权项
地址
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