Electron discharge device,申请号US19480029568-传众专利搜索

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发明名称	Electron discharge device
摘要
申请公布号	US2595677(A)	申请公布日期	1952.05.06
申请号	US19480029568	申请日期	1948.05.27
申请人	RADIO CORPORATION	发明人	LAW RUSSELL R.
分类号	H01J19/80	主分类号	H01J19/80
代理机构		代理人
主权项
地址

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