Multiple channel radio-frequency receiver,申请号US19450612991-传众专利搜索

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发明名称	Multiple channel radio-frequency receiver
摘要
申请公布号	US2500200(A)	申请公布日期	1950.03.14
申请号	US19450612991	申请日期	1945.08.27
申请人	THE DECCA RECORD COMPANY, LIMITED	发明人	O'BRIEN WILLIAM J.
分类号	G01R25/00;G01S1/30	主分类号	G01R25/00
代理机构		代理人
主权项
地址

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