Improvements in or relating to devices for preventing collisions on railways or tramways,申请号GB19380015779-传众专利搜索

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发明名称	Improvements in or relating to devices for preventing collisions on railways or tramways
摘要
申请公布号	GB515352(A)	申请公布日期	1939.12.04
申请号	GB19380015779	申请日期	1938.05.26
申请人	ALFRED ERNEST LE ROSSIGNOL	发明人
分类号	B61L3/06	主分类号	B61L3/06
代理机构		代理人
主权项
地址

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