Method of bleaching mineral matter,申请号US19320587607-传众专利搜索

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发明名称	Method of bleaching mineral matter
摘要
申请公布号	US2020132(A)	申请公布日期	1935.11.05
申请号	US19320587607	申请日期	1932.01.19
申请人	VIRGINIA SMELTING COMPANY	发明人	BINNS FREDERICK W.
分类号	C03C1/02	主分类号	C03C1/02
代理机构		代理人
主权项
地址

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