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发明名称
VORTRIEBSSCHILD FUER DAS AUFFAHREN VON TUNNELS, STOLLEN O.DGL.
摘要
申请公布号
DE2743046(A1)
申请公布日期
1979.04.05
申请号
DE19772743046
申请日期
1977.09.24
申请人
GEWERKSCHAFT EISENHUETTE WESTFALIA
发明人
STUCKMANN,DIETER;JUETTE,HANS
分类号
E21D9/06;(IPC1-7):E21D9/06
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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