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发明名称
DEVICE FOR CUTTING LATERAL HOLLOWS IN BOREHOLE WALLS
摘要
申请公布号
RU1790674(C)
申请公布日期
1993.01.23
申请号
SU19904838862
申请日期
1990.06.12
申请人
INST GORNOGO DELA SO AN SSSR
发明人
CHERNOV OLEG I,SU;KLISHIN VLADIMIR I,SU;MATVIETS YURIJ V,SU;SHEPELEV LEV N,SU;KYU NIKOLAJ G,SU;SHADRIN NIKOLAJ I,SU;ZVORYGIN LEONID V,SU
分类号
E21C37/00
主分类号
E21C37/00
代理机构
代理人
主权项
地址
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