Improvements relating to railway slip points,申请号GB19300026107-传众专利搜索

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发明名称	Improvements relating to railway slip points
摘要
申请公布号	GB357354(A)	申请公布日期	1931.09.24
申请号	GB19300026107	申请日期	1930.09.01
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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