Improvements in railway lines,申请号GB19300035931-传众专利搜索

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发明名称	Improvements in railway lines
摘要
申请公布号	GB373987(A)	申请公布日期	1932.06.02
申请号	GB19300035931	申请日期	1930.11.28
申请人	VEREINIGTE STAHLWERKE AKTIENGESELLSCHAFT	发明人
分类号	B61B1/00	主分类号	B61B1/00
代理机构		代理人
主权项
地址

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