Sharpening device for pencil leads,申请号US19610128635-传众专利搜索

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发明名称	Sharpening device for pencil leads
摘要
申请公布号	US3090358(A)	申请公布日期	1963.05.21
申请号	US19610128635	申请日期	1961.07.27
申请人	CONDON ROBERT S	发明人	CONDON ROBERT S.
分类号	B43L23/02	主分类号	B43L23/02
代理机构		代理人
主权项
地址

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