Draft gear for railway cars,申请号US19400356995-传众专利搜索

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发明名称	Draft gear for railway cars
摘要
申请公布号	US2286590(A)	申请公布日期	1942.06.16
申请号	US19400356995	申请日期	1940.09.16
申请人	THE DORNVAN CORPORATION	发明人	DORN HERBERT E. VAN
分类号	B61G9/02	主分类号	B61G9/02
代理机构		代理人
主权项
地址

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