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发明名称
DEVICE FOR DRILLING WELLS
摘要
申请公布号
SU1756476(A1)
申请公布日期
1992.08.23
申请号
SU19904844808
申请日期
1990.06.29
申请人
INST GORNOGO DELA IM.A.A.SKOCHINSKOGO
发明人
KACHALIN BORIS M,SU;KUZNETSOV VITALIJ P,SU;SITOV VALENTIN S,SU;SKRIPKA VITALIJ L,SU
分类号
E02F5/18
主分类号
E02F5/18
代理机构
代理人
主权项
地址
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