Art of treating metal bearing ores,申请号US19310524758-传众专利搜索

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发明名称	Art of treating metal bearing ores
摘要
申请公布号	US1972085(A)	申请公布日期	1934.09.04
申请号	US19310524758	申请日期	1931.03.23
申请人	DANA W. BOWERS	发明人	BOWERS DANA W.;BOWERS ERNEST F.
分类号	C22B11/10	主分类号	C22B11/10
代理机构		代理人
主权项
地址

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