Sharpener,申请号US19340722927-传众专利搜索

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发明名称	Sharpener
摘要
申请公布号	US1987348(A)	申请公布日期	1935.01.08
申请号	US19340722927	申请日期	1934.04.28
申请人	NELSON PETER G	发明人	NELSON PETER G.
分类号	B24B3/42	主分类号	B24B3/42
代理机构		代理人
主权项
地址

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