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发明名称
DRILLING MONITOR
摘要
申请公布号
EP0168996(B1)
申请公布日期
1988.10.12
申请号
EP19850304583
申请日期
1985.06.27
申请人
ANADRILL INTERNATIONAL SA
发明人
PELTIER, BERTRAND PIERRE JOSEPH MARIE
分类号
E21B12/02;E21B44/00;(IPC1-7):E21B44/00
主分类号
E21B12/02
代理机构
代理人
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