Depression of gangue during flotation,申请号US19380216291-传众专利搜索

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发明名称	Depression of gangue during flotation
摘要
申请公布号	US2211686(A)	申请公布日期	1940.08.13
申请号	US19380216291	申请日期	1938.06.28
申请人	AMERICAN CYANAMID COMPANY	发明人	BOOTH ROBERT B.
分类号	B03D1/004	主分类号	B03D1/004
代理机构		代理人
主权项
地址

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