Control mechanism for individually operated doors on hopper cars,申请号US19490134570-传众专利搜索

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发明名称	Control mechanism for individually operated doors on hopper cars
摘要
申请公布号	US2682233(A)	申请公布日期	1954.06.29
申请号	US19490134570	申请日期	1949.12.22
申请人	ORVILLE INGRAM	发明人	INGRAM ORVILLE
分类号	B61D7/16	主分类号	B61D7/16
代理机构		代理人
主权项
地址

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