Lawn mower sharpener,申请号US19470725428-传众专利搜索

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法人/股东/高管

发明名称	Lawn mower sharpener
摘要
申请公布号	US2456389(A)	申请公布日期	1948.12.14
申请号	US19470725428	申请日期	1947.01.31
申请人	CRAVER SR ORVILLE GRANT	发明人	SR. ORVILLE GRANT CRAVER,
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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