A blackboard eraser,申请号KR20040036394U-传众专利搜索

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发明名称	A blackboard eraser
摘要
申请公布号	KR200382059(Y1)	申请公布日期	2005.04.19
申请号	KR20040036394U	申请日期	2004.12.22
申请人		发明人
分类号	B43L21/02;(IPC1-7):B43L21/02	主分类号	B43L21/02
代理机构		代理人
主权项
地址

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