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发明名称
METHOD OF MONITORING ABRASIVE WEAR OF DRILLING TOOL
摘要
申请公布号
SU905417(A1)
申请公布日期
1982.02.15
申请号
SU19792852737
申请日期
1979.12.14
申请人
KOLSKAYA GEOLOGORAZVEDOCHNAYA EKSPEDITSIYA SVERKHGLUBOKOGO BURENIYA
发明人
VELIKOSELSKIJ MARK A,SU;VOROZHBITOV MARAT I,SU;PODKOLZIN GEORGIJ V,SU;BASOVICH VLADIMIR S,SU;VUGIN ROBERT B,SU;GUBERMAN DAVID M,SU;BERGSHTEJN OLEG YU,SU
分类号
E21B12/02;B23Q17/09;(IPC1-7):E21B12/02
主分类号
E21B12/02
代理机构
代理人
主权项
地址
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