An improved railway rail joint,申请号GB19310003297-传众专利搜索

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发明名称	An improved railway rail joint
摘要
申请公布号	GB363538(A)	申请公布日期	1931.12.24
申请号	GB19310003297	申请日期	1931.02.02
申请人	ALBERT KOENIG	发明人
分类号	E01B11/32	主分类号	E01B11/32
代理机构		代理人
主权项
地址

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