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发明名称
DEVICE FOR CLEANING BOREHOLE WALLS
摘要
申请公布号
SU832065(A1)
申请公布日期
1981.05.23
申请号
SU19792788121
申请日期
1979.06.29
申请人
VNII BUROVOJ TEKHNIKI
发明人
KUROCHKIN BORIS M,SU;ISAEV GENNADIJ E,SU;FATKULLIN RASHAT KH,SU;PRUSOVA NINA L,SU;BIKCHURIN TALGAT N,SU;BAJDYUK BRONISLAV V,SU
分类号
E21B37/00;(IPC1-7):E21B37/00
主分类号
E21B37/00
代理机构
代理人
主权项
地址
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