Improvements relating to electrical engraving machines,申请号GB19560019700-传众专利搜索

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发明名称	Improvements relating to electrical engraving machines
摘要
申请公布号	GB808002(A)	申请公布日期	1959.01.28
申请号	GB19560019700	申请日期	1956.06.26
申请人	JOHN WILLIAM HILL	发明人
分类号	B23H9/06	主分类号	B23H9/06
代理机构		代理人
主权项
地址

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