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发明名称
METHOD OF ERECTING MINE WORKING SUPPORT
摘要
申请公布号
SU1645534(A1)
申请公布日期
1991.04.30
申请号
SU19874264910
申请日期
1987.05.08
申请人
SHAKHTA IM.GEROEV KOSMOSA PROIZVODSTVENNOGO OBEDINENIYA PO DOBYCHE UGLYA "PAVLOGRADUGOL"
发明人
KARTAVYKH GENNADIJ I,SU
分类号
E21D11/10
主分类号
E21D11/10
代理机构
代理人
主权项
地址
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