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发明名称
A WELL ENTRY TOOL
摘要
申请公布号
EP0760896(A1)
申请公布日期
1997.03.12
申请号
EP19950919575
申请日期
1995.05.26
申请人
MACKINTOSH, KENNETH
发明人
MACKINTOSH, KENNETH
分类号
E21B3/02;E21B17/02;E21B21/02;E21B33/072;(IPC1-7):E21B33/072
主分类号
E21B3/02
代理机构
代理人
主权项
地址
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