Improvements in Sharpening devices for Drawing Leads,申请号GB19660023871-传众专利搜索

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发明名称	Improvements in Sharpening devices for Drawing Leads
摘要
申请公布号	GB1173905(A)	申请公布日期	1969.12.10
申请号	GB19660023871	申请日期	1966.05.27
申请人	WILLIAM FRANCIS O'HANLON	发明人	WILLIAM FRANCIS O'HANLON
分类号	B43L23/00	主分类号	B43L23/00
代理机构		代理人
主权项
地址

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