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发明名称
ARRANGEMENT FOR MAINTAINING LOAD-CARRYING CAPACITY OF MINE SUPPORT
摘要
申请公布号
SU1204723(A1)
申请公布日期
1986.01.15
申请号
SU19843710927
申请日期
1984.01.13
申请人
SIBIRSKIJ VNII GORNOJ GEOMEKHANIKI MARKSHEJDERSKOGO DELA
发明人
AKSENENKO VASILIJ I,SU
分类号
(IPC1-7):E21C41/04
主分类号
(IPC1-7):E21C41/04
代理机构
代理人
主权项
地址
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