Improvements in cooling arrangements for thermionic valves,申请号GB19400012751-传众专利搜索

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发明名称	Improvements in cooling arrangements for thermionic valves
摘要
申请公布号	GB540240(A)	申请公布日期	1941.10.09
申请号	GB19400012751	申请日期	1940.08.08
申请人	MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED;ARTHUR JAMES YOUNG	发明人
分类号	H01J19/28;H01J19/36	主分类号	H01J19/28
代理机构		代理人
主权项
地址

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