Наглядное пособие для усвоения принципов светофорной сигнализации,申请号SU19330186178-传众专利搜索

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发明名称	Наглядное пособие для усвоения принципов светофорной сигнализации
摘要
申请公布号	SU51930(A1)	申请公布日期	1936.11.30
申请号	SU19330186178	申请日期	1933.02.04
申请人	BERGOLTSEV G.A.	发明人	BERGOLTSEV G.A.
分类号	G09B9/04	主分类号	G09B9/04
代理机构		代理人
主权项
地址

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