Automatic motor-driven pencil sharpener,申请号US19510263029-传众专利搜索

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发明名称	Automatic motor-driven pencil sharpener
摘要
申请公布号	US2657672(A)	申请公布日期	1953.11.03
申请号	US19510263029	申请日期	1951.12.24
申请人	EUGENE ANGELL WALTER	发明人	ANGELL WALTER EUGENE
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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