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发明名称
Vortriebsschild fuer den Ausbau offener Baugruben
摘要
申请公布号
DE1634675(A1)
申请公布日期
1971.10.28
申请号
DE19671634675
申请日期
1967.05.12
申请人
WALBROEHL,HEINRICH
发明人
WALBROEHL,HEINRICH;WALBROEHL,HEINZ-THEO
分类号
E02D17/08;E21D9/06
主分类号
E02D17/08
代理机构
代理人
主权项
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