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发明名称
METHOD OF FILLING EXCAVATED SPACE IN MINING OF STEEP SEAMS
摘要
申请公布号
SU1481437(A1)
申请公布日期
1989.05.23
申请号
SU19874303235
申请日期
1987.09.09
申请人
SIBIRSKIJ VNII GORNOJ GEOMEKHANIKI MARKSHEJDERSKOGO DELA
发明人
AKSENENKO VASILIJ I,SU;KAZAK ANATOLIJ A,SU;LAPIN VLADIMIR A,SU
分类号
E21F15/00
主分类号
E21F15/00
代理机构
代理人
主权项
地址
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