Improvements in thermionic valve circuits,申请号GB19400010927-传众专利搜索

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发明名称	Improvements in thermionic valve circuits
摘要
申请公布号	GB542151(A)	申请公布日期	1941.12.29
申请号	GB19400010927	申请日期	1940.06.26
申请人	VACUUM-SCIENCE PRODUCTS LIMITED;HAROLD SEFTON MOLYNEUX-FFENNELL	发明人
分类号	H01J43/30	主分类号	H01J43/30
代理机构		代理人
主权项
地址

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