Verfahren und Vorrichtung zur Gewinnung von Kohle od. dgl.,申请号DE1954M022119-传众专利搜索

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发明名称	Verfahren und Vorrichtung zur Gewinnung von Kohle od. dgl.
摘要
申请公布号	DE1005018(B)	申请公布日期	1957.03.28
申请号	DE1954M022119	申请日期	1954.02.26
申请人	MASCHINENFABRIK UND EISENGIESSEREI A. BEIEN	发明人
分类号	E21C25/56	主分类号	E21C25/56
代理机构		代理人
主权项
地址

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