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发明名称
Verfahren und Einrichtung zum Abbau von Kohle u. dgl. mit einem dem Abbaustoss im ganzen nachrueckenden Foerdermittel
摘要
申请公布号
DE918385(C)
申请公布日期
1954.09.27
申请号
DE1951V004092
申请日期
1951.12.11
申请人
ALOYS VANWERSCH
发明人
VANWERSCH ALOYS
分类号
E21D17/00
主分类号
E21D17/00
代理机构
代理人
主权项
地址
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