Thresher concave with rubber threshing bars,申请号US19450571706-传众专利搜索

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发明名称	Thresher concave with rubber threshing bars
摘要
申请公布号	US2457680(A)	申请公布日期	1948.12.28
申请号	US19450571706	申请日期	1945.01.05
申请人	DEERE & COMPANY	发明人	JOHNSON ERIC J.
分类号	A01F12/24	主分类号	A01F12/24
代理机构		代理人
主权项
地址

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