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发明名称
DRILL FOR VERTICAL AND INCLINED WELLS
摘要
申请公布号
SU1742460(A1)
申请公布日期
1992.06.23
申请号
SU19904800819
申请日期
1990.03.11
申请人
N-PROIZV OB SAMOKHODNOJ GORNOJ TEKHNIKI "KRIVOROZHRUDMASH"
发明人
MARTYANOV YURIJ A,SU;BOJKO VLADIMIR P,SU;SAKOVICH MILIJ G,SU;ZERNYUKOV SERGEJ E,SU
分类号
E21B7/02;E21B15/04
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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