Electron discharge devices,申请号US19510246801-传众专利搜索

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发明名称	Electron discharge devices
摘要
申请公布号	US2776374(A)	申请公布日期	1957.01.01
申请号	US19510246801	申请日期	1951.09.15
申请人	INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION	发明人	ISKENDERIAN HAIG P.
分类号	H01J25/42	主分类号	H01J25/42
代理机构		代理人
主权项
地址

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