Flotation process for concentrating carbonate minerals,申请号US19370169071-传众专利搜索

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发明名称	Flotation process for concentrating carbonate minerals
摘要
申请公布号	US2217685(A)	申请公布日期	1940.10.15
申请号	US19370169071	申请日期	1937.10.14
申请人	E. I. DU PONT DE NEMOURS & COMPANY	发明人	KIRBY JAMES EMORY;GILLSON JOSEPH LINCOLN
分类号	B03D1/01;B03D1/02	主分类号	B03D1/01
代理机构		代理人
主权项
地址

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