Grinding and polishing apparatus,申请号GB19470021448-传众专利搜索

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发明名称	Grinding and polishing apparatus
摘要
申请公布号	GB642674(A)	申请公布日期	1950.09.06
申请号	GB19470021448	申请日期	1947.08.06
申请人	ALFRED EARL HAMILTON	发明人
分类号	B24B7/13	主分类号	B24B7/13
代理机构		代理人
主权项
地址

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