Improvements in or relating to non-linear thermionic valve stages,申请号GB19370030919-传众专利搜索

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发明名称	Improvements in or relating to non-linear thermionic valve stages
摘要
申请公布号	GB505500(A)	申请公布日期	1939.05.11
申请号	GB19370030919	申请日期	1937.11.11
申请人	BERTRAM MORTON HADFIELD	发明人
分类号	H03F3/32;H04Q1/30	主分类号	H03F3/32
代理机构		代理人
主权项
地址

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