Dropper valve for corn planters,申请号US19310512583-传众专利搜索

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发明名称	Dropper valve for corn planters
摘要
申请公布号	US1825035(A)	申请公布日期	1931.09.29
申请号	US19310512583	申请日期	1931.01.31
申请人	YOUNG EDGAR B	发明人	YOUNG EDGAR B.
分类号	A01C7/18	主分类号	A01C7/18
代理机构		代理人
主权项
地址

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