Railway brake beam support structure,申请号US19470735006-传众专利搜索

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发明名称	Railway brake beam support structure
摘要
申请公布号	US2499549(A)	申请公布日期	1950.03.07
申请号	US19470735006	申请日期	1947.03.15
申请人	CHICAGO RAILWAY EQUIPMENT COMPANY	发明人	WALKER SAMUEL J.
分类号	B61H13/36	主分类号	B61H13/36
代理机构		代理人
主权项
地址

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