Pencil attached adjustable eraser,申请号US19500145805-传众专利搜索

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发明名称	Pencil attached adjustable eraser
摘要
申请公布号	US2658480(A)	申请公布日期	1953.11.10
申请号	US19500145805	申请日期	1950.02.23
申请人	HANSEN LOUIS H	发明人	HANSEN LOUIS H.
分类号	B43K29/02	主分类号	B43K29/02
代理机构		代理人
主权项
地址

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