Superheterodyne receiver for unmodulated telegraphic signals,申请号US19480041363-传众专利搜索

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发明名称	Superheterodyne receiver for unmodulated telegraphic signals
摘要
申请公布号	US2509977(A)	申请公布日期	1950.05.30
申请号	US19480041363	申请日期	1948.07.29
申请人	HARTFORD NATIONAL BANK AND TRUST COMPANY	发明人	KOFFYBERG DIEDERIK
分类号	H04L27/06	主分类号	H04L27/06
代理机构		代理人
主权项
地址

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