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经营范围
发明名称
ROCK-BREAKING TOOL
摘要
申请公布号
SU582396(A1)
申请公布日期
1977.11.30
申请号
SU19762370080
申请日期
1976.06.08
申请人
INST GEOTEKHNICHESKOJ MEKHANIKI AN UK SSR
发明人
KUKHAR VASILIJ YA,SU
分类号
E21C35/23;(IPC1-7):E21C25/38
主分类号
E21C35/23
代理机构
代理人
主权项
地址
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