Purifying light metal,申请号US19280310440-传众专利搜索

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发明名称	Purifying light metal
摘要
申请公布号	US1871316(A)	申请公布日期	1932.08.09
申请号	US19280310440	申请日期	1928.10.04
申请人	THE DOW CHEMICAL COMPANY	发明人	GANN JOHN A.
分类号	C22B26/22	主分类号	C22B26/22
代理机构		代理人
主权项
地址

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