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发明名称
DEVICE FOR CONTROL OF DRILLING PROCESS
摘要
申请公布号
SU1647126(A1)
申请公布日期
1991.05.07
申请号
SU19894688642
申请日期
1989.05.05
申请人
VNII METODIKI TEKHNIKI RAZVEDKI
发明人
VASILEV VIKTOR I,SU;EGOROV ILYA S,SU;ZABORSKIJ KLIMENTIJ L,SU;SEROV SERGEJ A,SU;SEROV YURIJ A,SU
分类号
E21B44/02;E21B44/00
主分类号
E21B44/02
代理机构
代理人
主权项
地址
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