Treatment of iron ores,申请号US19380202926-传众专利搜索

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发明名称	Treatment of iron ores
摘要
申请公布号	US2219046(A)	申请公布日期	1940.10.22
申请号	US19380202926	申请日期	1938.04.19
申请人	KARL KOLLER;ZSIGMOND GALOCSY	发明人	KOLLER KARL;GALOCSY ZSIGMOND
分类号	C21B5/00	主分类号	C21B5/00
代理机构		代理人
主权项
地址

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