Verfahren und Vorrichtung zur Gewinnung von Kohle od. dgl.,申请号DE1949P040873-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	DE897538(C)	申请公布日期	1953.11.23
申请号	DE1949P040873	申请日期	1949.04.27
申请人	TANNER ERICH DR.-ING.;ZIGAN ALFONS DIPL.-BERGING.	发明人	TANNER ERICH DR.-ING.;ZIGAN ALFONS DIPL.-BERGING.
分类号	E21C27/18	主分类号	E21C27/18
代理机构		代理人
主权项
地址

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