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发明名称
ANNULAR ROOF SUPPORT FOR HORIZONTAL AND INCLINED MINE WORKINGS
摘要
申请公布号
SU883468(A1)
申请公布日期
1981.11.23
申请号
SU19802900197
申请日期
1980.03.27
申请人
MO GORNYJ INSTITUT
发明人
BURCHAKOV YURIJ I,SU;MOTSKIN ISAK A,SU;KUZNETSOV VIKTOR B,SU;REVNIVYKH GEORGIJ A,SU;SUMIN IVAN P,SU
分类号
E21D11/14;(IPC1-7):E21D11/14
主分类号
E21D11/14
代理机构
代理人
主权项
地址
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