Apparatus for the treatments of materials in grains or pieces, such as minerals, coals, and the like,申请号US19380218869-传众专利搜索

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发明名称	Apparatus for the treatments of materials in grains or pieces, such as minerals, coals, and the like
摘要
申请公布号	US2211895(A)	申请公布日期	1940.08.20
申请号	US19380218869	申请日期	1938.07.12
申请人	LEON HOYOIS	发明人	HOYOIS LEON
分类号	B03B5/68	主分类号	B03B5/68
代理机构		代理人
主权项
地址

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