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发明名称
MOVABLE DRILLING RIG FOR DRILLING VERTICAL AND INCLINED HOLES
摘要
申请公布号
RU2001227(C1)
申请公布日期
1993.10.15
申请号
SU19914902746
申请日期
1991.01.17
申请人
GOJ VLADIMIR L
发明人
GOJ VLADIMIR L
分类号
E21B7/02;(IPC1-7):E21B7/02
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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