Improvements in railway rail joints,申请号GB19310017298-传众专利搜索

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发明名称	Improvements in railway rail joints
摘要
申请公布号	GB369809(A)	申请公布日期	1932.03.31
申请号	GB19310017298	申请日期	1931.06.15
申请人	MCLEOD THOMSON	发明人
分类号	E01B11/04	主分类号	E01B11/04
代理机构		代理人
主权项
地址

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