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发明名称
CUTTER DRILL BIT
摘要
申请公布号
SU732483(A1)
申请公布日期
1980.05.05
申请号
SU19772507002
申请日期
1977.07.11
申请人
MO I NEFTEKHIMICHESKOJ GAZOVOJ PROMY IM.I.M.GUBKINA
发明人
BAZROV BORIS M,SU;LIZOGUB KONSTANTIN G,SU;GUBAR VLADIMIR A,SU
分类号
(IPC1-7):E21B9/10
主分类号
(IPC1-7):E21B9/10
代理机构
代理人
主权项
地址
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