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经营范围
发明名称
Hydraulischer Grubenausbau
摘要
申请公布号
DE1758763(A1)
申请公布日期
1971.03.04
申请号
DE19681758763
申请日期
1968.08.02
申请人
GEWERKSCHAFT EISENHUETTE WESTFALIA
发明人
DOMMANN,GUENTHER,DR.-ING.
分类号
E21D23/00
主分类号
E21D23/00
代理机构
代理人
主权项
地址
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