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经营范围
发明名称
DRILLING TOOL
摘要
申请公布号
SU1314038(A1)
申请公布日期
1987.05.30
申请号
SU19853913216
申请日期
1985.06.13
申请人
VNII TRANSPORTNOGO STROITELSTVA;MO I NEFTI GAZA IM.I.M.GUBKINA
发明人
VINOGRADOV VLADIMIR N,SU;KRYUKOV GEORGIJ M,SU;GOJKHMAN YAKOV A,SU;KURAKIN IGOR B,SU;SOROKIN GEORGIJ M,SU;ONOTSKIJ MELIS I,SU;FILATOV ALEKSEJ V,SU;TSARAPKIN VIKTOR V,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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