Grain feeding device,申请号US19290353989-传众专利搜索

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发明名称	Grain feeding device
摘要
申请公布号	US1813519(A)	申请公布日期	1931.07.07
申请号	US19290353989	申请日期	1929.04.10
申请人	HART-CARTER COMPANY	发明人	VARUSKY JOHN J.
分类号	B02C11/04	主分类号	B02C11/04
代理机构		代理人
主权项
地址

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