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发明名称
DIAMOND DRILLING BIT
摘要
申请公布号
SU1180479(A1)
申请公布日期
1985.09.23
申请号
SU19843735532
申请日期
1984.04.28
申请人
INST SVERKHTVERDYKH MAT
发明人
LIVSHITS VALERIJ N,SU;IVZHENKO ALEKSANDR N,SU;BUGAEV ALEKSANDR A,SU;BOGDANOV ROBERT K,SU;TITOVA TATYANA P,SU
分类号
E21B10/48;(IPC1-7):E21B10/48
主分类号
E21B10/48
代理机构
代理人
主权项
地址
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