Plow attachment for tractors,申请号US19310564823-传众专利搜索

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发明名称	Plow attachment for tractors
摘要
申请公布号	US1902846(A)	申请公布日期	1933.03.28
申请号	US19310564823	申请日期	1931.09.24
申请人	INTERNATIONAL HARVESTER COMPANY	发明人	GRAHAM WILLIAM S.
分类号	A01B3/44	主分类号	A01B3/44
代理机构		代理人
主权项
地址

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