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发明名称
METHOD OF RELIEVING ROCK AROUND A WORKING
摘要
申请公布号
SU1469178(A1)
申请公布日期
1989.03.30
申请号
SU19864105185
申请日期
1986.05.13
申请人
KOMMUNARSKIJ GORNO-METALLURGICHESKIJ INSTITUT
发明人
BABIYUK GENNADIJ V,SU;KOROBKIN SERGEJ G,SU;MELEZHIK ALEKSANDR I,SU
分类号
E21F5/00
主分类号
E21F5/00
代理机构
代理人
主权项
地址
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