High frequency apparatus,申请号US19400353132-传众专利搜索

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发明名称	High frequency apparatus
摘要
申请公布号	US2284405(A)	申请公布日期	1942.05.26
申请号	US19400353132	申请日期	1940.08.17
申请人	GENERAL ELECTRIC COMPANY	发明人	MCARTHUR ELMER D.
分类号	H01J21/06;H01J21/36;H03F3/54	主分类号	H01J21/06
代理机构		代理人
主权项
地址

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