Separation of solid materials of different specific gravities,申请号US19490081884-传众专利搜索

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发明名称	Separation of solid materials of different specific gravities
摘要
申请公布号	US2621790(A)	申请公布日期	1952.12.16
申请号	US19490081884	申请日期	1949.03.17
申请人	COLLIERY ENGINEERING LIMITED	发明人	LAWRIE ALBERT ERNEST;NEEDHAM LEONARD WILLIAM
分类号	B03B5/44	主分类号	B03B5/44
代理机构		代理人
主权项
地址

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