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经营范围
发明名称
DRILLING MACHINE
摘要
申请公布号
SU1555457(A1)
申请公布日期
1990.04.07
申请号
SU19884394864
申请日期
1988.03.21
申请人
MO I NEFTI GAZA IM.I.M.GUBKINA
发明人
SOROKIN GEORGIJ M,SU;KURAKIN IGOR B,SU;TSARAPKIN VIKTOR V,SU;FRENKEL BORIS E,SU;VASILEV VLADIMIR A,SU
分类号
E21B4/14
主分类号
E21B4/14
代理机构
代理人
主权项
地址
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