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发明名称
Einrichtung zur Steuerung von hydraulischem Strebausbau
摘要
申请公布号
DE1758632(A1)
申请公布日期
1971.03.18
申请号
DE19681758632
申请日期
1968.07.09
申请人
BERGWERKSVERBAND GMBH
发明人
RIESCHEL,HANS
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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