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发明名称
LOCK FOR COUPLING DRILLING RODS
摘要
申请公布号
SU1129321(A1)
申请公布日期
1984.12.15
申请号
SU19833583770
申请日期
1983.04.20
申请人
UK NI PK I PODZEMNOJ GIDRAVLICHESKOJ DOBYCHI UGLYA
发明人
MOLCHANOV ANATOLIJ I,SU;DRUPOV NIKOLAJ A,SU;SLEPETS VLADIMIR F,SU;LIMAREV NIKOLAJ YU,SU;LAVRUKHIN ANATOLIJ N,SU
分类号
E21B17/046;(IPC1-7):E21B17/046
主分类号
E21B17/046
代理机构
代理人
主权项
地址
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