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发明名称
DEVICE FOR ATTACHING ROLLER-BIT TOOL
摘要
申请公布号
SU1418461(A1)
申请公布日期
1988.08.23
申请号
SU19864082283
申请日期
1986.07.02
申请人
DO GPKEXI KOMPLEX MEKH SHAKHT
发明人
LEVIN ALEKSANDR M,SU;TULCHINSKIJ GRIGORIJ P,SU;DANILOV VLADIMIR N,SU
分类号
E21B10/20
主分类号
E21B10/20
代理机构
代理人
主权项
地址
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