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发明名称
VENTIL ZUR STEUERUNG HYDRAULISCHER AUSBAUGESTELLE FUER BERGMAENNISCHE GEWINNUNGSBETRIEBE.
摘要
申请公布号
DE1771539(U)
申请公布日期
1958.08.07
申请号
DE195700G6082U
申请日期
1957.07.30
申请人
GEWERKSCHAFT EISENHUETTE WESTFALIA
发明人
分类号
主分类号
代理机构
代理人
主权项
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