Ultra high frequency electronic tube,申请号US19440559726-传众专利搜索

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发明名称	Ultra high frequency electronic tube
摘要
申请公布号	US2444303(A)	申请公布日期	1948.06.29
申请号	US19440559726	申请日期	1944.10.21
申请人	SYLVANIA ELECTRIC PRODUCTS INC.	发明人	MCCARTHY HENRY J.
分类号	H01J17/04	主分类号	H01J17/04
代理机构		代理人
主权项
地址

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