Прибор для автоматического определения состояния изоляции телефонных линий,申请号SU19340151514-传众专利搜索

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发明名称	Прибор для автоматического определения состояния изоляции телефонных линий
摘要
申请公布号	SU43048(A1)	申请公布日期	1935.05.31
申请号	SU19340151514	申请日期	1934.07.25
申请人	MERKUSHEV F.S.	发明人	MERKUSHEV F.S.
分类号	H04M1/24	主分类号	H04M1/24
代理机构		代理人
主权项
地址

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