Blade-sharpening device for lawn mowers,申请号US19280297505-传众专利搜索

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发明名称	Blade-sharpening device for lawn mowers
摘要
申请公布号	US1756162(A)	申请公布日期	1930.04.29
申请号	US19280297505	申请日期	1928.08.04
申请人	KAMEKICHI MINAMI	发明人	MINAMI KAMEKICHI
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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