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发明名称
Verfahren zum Kohlen- und Versatzfoerdern
摘要
申请公布号
DE726907(C)
申请公布日期
1942.10.22
申请号
DE1941M150042D
申请日期
1941.02.23
申请人
MASCHINENFABRIK WILHELM KNAPP G.M.B.H.
发明人
分类号
E21F13/06
主分类号
E21F13/06
代理机构
代理人
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