Short wave tube,申请号US19340732028-传众专利搜索

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发明名称	Short wave tube
摘要
申请公布号	US2030187(A)	申请公布日期	1936.02.11
申请号	US19340732028	申请日期	1934.06.23
申请人	RADIO CORPORATION OF AMERICA	发明人	SALZBERG BERNARD
分类号	H01J21/06	主分类号	H01J21/06
代理机构		代理人
主权项
地址

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