Means for raising and lowering shields of tractor supported cultivators,申请号US19310552712-传众专利搜索

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发明名称	Means for raising and lowering shields of tractor supported cultivators
摘要
申请公布号	US1870910(A)	申请公布日期	1932.08.09
申请号	US19310552712	申请日期	1931.07.23
申请人	HUGHES JOSEPH E	发明人	HUGHES JOSEPH E.
分类号	A01B39/26;A01B63/04	主分类号	A01B39/26
代理机构		代理人
主权项
地址

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