Improvements in line balancing circuits for two-way transmission systems,申请号GB19300020217-传众专利搜索

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发明名称	Improvements in line balancing circuits for two-way transmission systems
摘要
申请公布号	GB344752(A)	申请公布日期	1931.03.12
申请号	GB19300020217	申请日期	1930.07.03
申请人	TELEFONAKTIEBOLAGET L.M. ERICSSON	发明人
分类号	H04B1/58	主分类号	H04B1/58
代理机构		代理人
主权项
地址

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