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发明名称
SUPPORT FOR ASCENDING MINE WORKINGS
摘要
申请公布号
SU1109520(A1)
申请公布日期
1984.08.23
申请号
SU19813349158
申请日期
1981.10.22
申请人
INST GORNOGO DELA SO AN SSSR
发明人
MURZIN GENNADIJ S,SU;FROLOV BORIS A,SU
分类号
E21D5/10;(IPC1-7):E21D5/10
主分类号
E21D5/10
代理机构
代理人
主权项
地址
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