Improvements relating to thermionic valve circuits,申请号GB19310008444-传众专利搜索

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发明名称	Improvements relating to thermionic valve circuits
摘要
申请公布号	GB368995(A)	申请公布日期	1932.03.17
申请号	GB19310008444	申请日期	1931.03.19
申请人	THE GENERAL ELECTRIC COMPANY LIMITED;GEORGE CHRISTOPHER MARRIS	发明人
分类号	H01J1/13	主分类号	H01J1/13
代理机构		代理人
主权项
地址

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