Tunable electronic tube,申请号US19630333404-传众专利搜索

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发明名称	Tunable electronic tube
摘要
申请公布号	US3343031(A)	申请公布日期	1967.09.19
申请号	US19630333404	申请日期	1963.12.26
申请人	NORTH AMERICAN PHILIPS CO., INC.	发明人	BACKMARK NILS-ERIK
分类号	H01J23/213	主分类号	H01J23/213
代理机构		代理人
主权项
地址

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