Устройство для сигнализации между вагонами трамвайного поезда,申请号SU19290045731D-传众专利搜索

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发明名称	Устройство для сигнализации между вагонами трамвайного поезда
摘要
申请公布号	SU14374(A1)	申请公布日期	1930.03.31
申请号	SU19290045731D	申请日期	1929.04.23
申请人	VASILEV A.V.	发明人	VASILEV A.V.
分类号	B61K13/04	主分类号	B61K13/04
代理机构		代理人
主权项
地址

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