Improvements relating to railway signalling apparatus,申请号GB19550012110-传众专利搜索

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发明名称	Improvements relating to railway signalling apparatus
摘要
申请公布号	GB784647(A)	申请公布日期	1957.10.16
申请号	GB19550012110	申请日期	1955.04.27
申请人	SOCIETE TECHNIQUE POUR L'INDUSTRIE NOUVELIE S. A. "STIN"	发明人
分类号	B61L13/04	主分类号	B61L13/04
代理机构		代理人
主权项
地址

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