Receiver for voice frequency telegraph systems,申请号US19510210136-传众专利搜索

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发明名称	Receiver for voice frequency telegraph systems
摘要
申请公布号	US2681949(A)	申请公布日期	1954.06.22
申请号	US19510210136	申请日期	1951.02.09
申请人	STAATSBEDRIJF DER POSTERIJEN, TELEGRAFIE EN TELEFONIE	发明人	ZOEST WILLEM HUGO VAN
分类号	H04L27/08	主分类号	H04L27/08
代理机构		代理人
主权项
地址

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