Improvements in or relating to thermionic amplifiers,申请号GB19310030036-传众专利搜索

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发明名称	Improvements in or relating to thermionic amplifiers
摘要
申请公布号	GB391489(A)	申请公布日期	1933.05.01
申请号	GB19310030036	申请日期	1931.10.29
申请人	MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED;ERNEST GREEN	发明人
分类号	H03F3/02	主分类号	H03F3/02
代理机构		代理人
主权项
地址

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