Step for freight cars,申请号US19290341717-传众专利搜索

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发明名称	Step for freight cars
摘要
申请公布号	US1760200(A)	申请公布日期	1930.05.27
申请号	US19290341717	申请日期	1929.02.21
申请人	THE BUCKEYE STEEL CASTINGS COMPANY	发明人	LARGE GEORGE E.
分类号	B61D23/00	主分类号	B61D23/00
代理机构		代理人
主权项
地址

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