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发明名称
MINE SHAFT EQUIPMENT
摘要
申请公布号
SU657175(A1)
申请公布日期
1979.04.15
申请号
SU19772462829
申请日期
1977.03.09
申请人
REVKOV MIKHAIL N,SU;ROSHCHUPKIN GEORGIJ ,SU
发明人
REVKOV MIKHAIL N,SU;ROSHCHUPKIN GEORGIJ ,SU
分类号
E21D7/00;E21F13/04;(IPC1-7):E21D7/00
主分类号
E21D7/00
代理机构
代理人
主权项
地址
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