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发明名称
SECTION OF POWERED MINING ROOF SUPPORT
摘要
申请公布号
SU1008462(A1)
申请公布日期
1983.03.30
申请号
SU19813290857
申请日期
1981.05.07
申请人
REVOLYUTSII I GORNOGO DELA IM.A.A.SKOCHINSKOGO
发明人
BOGATYREV NIKOLAJ T,SU;SANIN SERGEJ A,SU
分类号
E21D23/04;(IPC1-7):E21D23/04
主分类号
E21D23/04
代理机构
代理人
主权项
地址
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