Rail block fastening device,申请号US19330690124-传众专利搜索

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发明名称	Rail block fastening device
摘要
申请公布号	US1975391(A)	申请公布日期	1934.10.02
申请号	US19330690124	申请日期	1933.09.19
申请人	ELMER EVENSON	发明人	EVENSON ELMER
分类号	E01B5/18	主分类号	E01B5/18
代理机构		代理人
主权项
地址

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