Combined erasing, blotting, and eraser cleaning implement,申请号US19500198328-传众专利搜索

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发明名称	Combined erasing, blotting, and eraser cleaning implement
摘要
申请公布号	US2633829(A)	申请公布日期	1953.04.07
申请号	US19500198328	申请日期	1950.11.30
申请人	EARL THOMPSON CLARENCE	发明人	THOMPSON CLARENCE EARL
分类号	B43L19/00	主分类号	B43L19/00
代理机构		代理人
主权项
地址

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