Improvements relating to railway points,申请号GB19300025857-传众专利搜索

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发明名称	Improvements relating to railway points
摘要
申请公布号	GB359121(A)	申请公布日期	1931.10.22
申请号	GB19300025857	申请日期	1930.08.29
申请人	VEREINIGTE STAHLWERKE AKTIENGESELLSCHAFT	发明人
分类号	E01B7/18	主分类号	E01B7/18
代理机构		代理人
主权项
地址

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