Electrical signal amplifying and repeating system,申请号US19250029859-传众专利搜索

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发明名称	Electrical signal amplifying and repeating system
摘要
申请公布号	US1789950(A)	申请公布日期	1931.01.20
申请号	US19250029859	申请日期	1925.05.13
申请人	RADIO CORPORATION OF AMERICA	发明人	MIESSNER BENJAMIN F.
分类号	H04B15/00	主分类号	H04B15/00
代理机构		代理人
主权项
地址

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