Method of shaping rail joint bars,申请号US19350053035-传众专利搜索

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发明名称	Method of shaping rail joint bars
摘要
申请公布号	US2063386(A)	申请公布日期	1936.12.08
申请号	US19350053035	申请日期	1935.12.05
申请人	GEORGE LANGFORD	发明人	LANGFORD GEORGE
分类号	E01B31/18	主分类号	E01B31/18
代理机构		代理人
主权项
地址

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