Improvements in apparatus for use in a gravity concentration process for the wet concentration of coal,申请号GB19340028743-传众专利搜索

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发明名称	Improvements in apparatus for use in a gravity concentration process for the wet concentration of coal
摘要
申请公布号	GB420427(A)	申请公布日期	1934.11.26
申请号	GB19340028743	申请日期	1933.05.24
申请人	GERARD JAN DE VOOYS	发明人
分类号	B03B5/36;B03B5/62	主分类号	B03B5/36
代理机构		代理人
主权项
地址

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