Прибор для испытания телефонных коммутаторов,申请号SU19280030175-传众专利搜索

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发明名称	Прибор для испытания телефонных коммутаторов
摘要
申请公布号	SU24454(A1)	申请公布日期	1931.12.31
申请号	SU19280030175	申请日期	1928.07.16
申请人	VASILEV V.G.	发明人	VASILEV V.G.
分类号	H04M5/10	主分类号	H04M5/10
代理机构		代理人
主权项
地址

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