Ultra high frequency tube,申请号US19450633967-传众专利搜索

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发明名称	Ultra high frequency tube
摘要
申请公布号	US2455310(A)	申请公布日期	1948.11.30
申请号	US19450633967	申请日期	1945.12.10
申请人	SYLVANIA ELECTRIC PRODUCTS INC.	发明人	MCCARTHY HENRY J.
分类号	H01J23/46	主分类号	H01J23/46
代理机构		代理人
主权项
地址

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