Ausbau eines Gewinnungsstrebs mit schrittweise dem fortschreitenden Abbau nachrueckenden Ausbauelementen,申请号DE1950G002764-传众专利搜索

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发明名称	Ausbau eines Gewinnungsstrebs mit schrittweise dem fortschreitenden Abbau nachrueckenden Ausbauelementen
摘要
申请公布号	DE819234(C)	申请公布日期	1951.10.31
申请号	DE1950G002764	申请日期	1950.06.29
申请人	GEWERKSCHAFT EISENHUETTE WESTFALIA	发明人	HERRMANN JULIUS
分类号	E21D23/00	主分类号	E21D23/00
代理机构		代理人
主权项
地址

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