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发明名称
MINE ROOF SUPPORT FOR VERTICAL WORKINGS
摘要
申请公布号
SU670729(A1)
申请公布日期
1979.06.30
申请号
SU19782576798
申请日期
1978.02.09
申请人
SREDNEAZIATSKOE OTDEL V PROEKTNO-IZYSKATELSKOGO NII "GIDROPROEKT" IM.S.YA.ZHUKA
发明人
ILYUSHIN VIKTOR FROLOVICH,SU
分类号
E21D5/04;(IPC1-7):E21D5/04
主分类号
E21D5/04
代理机构
代理人
主权项
地址
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