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发明名称
METHOD AND FORMWORK FOR SINKING A MINE SHAFT
摘要
申请公布号
SU1559169(A1)
申请公布日期
1990.04.23
申请号
SU19884374914
申请日期
1988.02.03
申请人
GORNYJ I KOLSKOGO FILIALA IM.S.M.KIROVA AN SSSR
发明人
FOKIN VIKTOR A,SU
分类号
E21D1/00
主分类号
E21D1/00
代理机构
代理人
主权项
地址
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