Method for treating ore concentrates,申请号US19520308151-传众专利搜索

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发明名称	Method for treating ore concentrates
摘要
申请公布号	US2724637(A)	申请公布日期	1955.11.22
申请号	US19520308151	申请日期	1952.09.05
申请人	NATIONAL LEAD COMPANY	发明人	STANLEY ALAN
分类号	C22B34/12	主分类号	C22B34/12
代理机构		代理人
主权项
地址

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