Machine for sharpening lawn mowers,申请号US19400338348-传众专利搜索

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发明名称	Machine for sharpening lawn mowers
摘要
申请公布号	US2314945(A)	申请公布日期	1943.03.30
申请号	US19400338348	申请日期	1940.06.01
申请人	THE GRAHAM MFG. CO., INC.	发明人	MAYNARD JOEL P.;JR. GEORGE A. MATTESON,
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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