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发明名称
ONE-CONE DRILL BIT
摘要
申请公布号
RU2036294(C1)
申请公布日期
1995.05.27
申请号
SU19925058254
申请日期
1992.08.10
申请人
TATARSKIJ GOSUDARSTVENNYJ NAUCHNO-ISSLEDOVATELSKIJ I PROEKTNYJ INSTITUT NEFTYANOJ PROMYSHLENNOSTI
发明人
ABDRAKHMANOV GABDRASHIT SULTANOVICH;BOGOMOLOV RODION MIKHAJLOVICH;SALOMATIN VALENTIN VASILEVICH;FILIPPOV VITALIJ PETROVICH
分类号
E21B10/08;(IPC1-7):E21B10/08
主分类号
E21B10/08
代理机构
代理人
主权项
地址
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