Improvements in or relating to the preparation of small washed coal,申请号GB19620010944-传众专利搜索

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发明名称	Improvements in or relating to the preparation of small washed coal
摘要
申请公布号	GB970489(A)	申请公布日期	1964.09.23
申请号	GB19620010944	申请日期	1962.03.22
申请人	DON VALLEY ENGINEERING COMPANY LIMITED	发明人	SPILLER CLIFFORD HARRY
分类号	B03B9/00	主分类号	B03B9/00
代理机构		代理人
主权项
地址

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