Improvements in or relating to electron discharge amplification systems,申请号GB19300035176-传众专利搜索

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发明名称	Improvements in or relating to electron discharge amplification systems
摘要
申请公布号	GB367056(A)	申请公布日期	1932.02.18
申请号	GB19300035176	申请日期	1930.11.21
申请人	JOHN HAYS HAMMOND, JR.	发明人
分类号	H03G9/10	主分类号	H03G9/10
代理机构		代理人
主权项
地址

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