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发明名称
METHOD FOR CONTROL OF MINE ROOF DURING EXCAVATION OF BED BY STEPPED FACE
摘要
申请公布号
SU1698440(A1)
申请公布日期
1991.12.15
申请号
SU19854018108
申请日期
1985.12.23
申请人
DO NI UGOLNYJ INSTITUT
发明人
STEPANOVICH GENNADIJ YA,SU;ROZENTAL MOISEJ B,SU;NIKOLENKO NIKOLAJ A,SU;DUKHNOVSKIJ KONSTANTIN T,SU;GUDZ VIKTOR P,SU;GALYANIN ALEKSEJ I,SU
分类号
E21C41/28
主分类号
E21C41/28
代理机构
代理人
主权项
地址
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