Устройство для сигнализации между вагонами трамвайного поезда,申请号SU19290055228-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	SU21231(A1)	申请公布日期	1931.07.31
申请号	SU19290055228	申请日期	1929.09.24
申请人	SOLOMONNIKOV B.A.	发明人	SOLOMONNIKOV B.A.
分类号	B61L15/00	主分类号	B61L15/00
代理机构		代理人
主权项
地址

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