Transmitting circuits, with thermionic valves,申请号US19310562167-传众专利搜索

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发明名称	Transmitting circuits, with thermionic valves
摘要
申请公布号	US1956134(A)	申请公布日期	1934.04.24
申请号	US19310562167	申请日期	1931.09.10
申请人	EDMONDO RUSPOLI	发明人	RUSPOLI EDMONDO
分类号	H03B5/34	主分类号	H03B5/34
代理机构		代理人
主权项
地址

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