Pencil lead pointer,申请号US19580752852-传众专利搜索

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发明名称	Pencil lead pointer
摘要
申请公布号	US2926632(A)	申请公布日期	1960.03.01
申请号	US19580752852	申请日期	1958.08.04
申请人	CUNNINGHAM & SONS	发明人	CUNNINGHAM ARTHUR RAYMOND
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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