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发明名称
WELL DRILLING CONTROL SYSTEM
摘要
申请公布号
RU2021499(C1)
申请公布日期
1994.10.15
申请号
SU19924775523
申请日期
1992.11.27
申请人
SAKHAROV ALEKSANDR V
发明人
SAKHAROV ALEKSANDR V
分类号
E21B45/00;(IPC1-7):E21B45/00
主分类号
E21B45/00
代理机构
代理人
主权项
地址
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