Supervisory equipment for carrier-wave telephone systems,申请号US19530392450-传众专利搜索

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发明名称	Supervisory equipment for carrier-wave telephone systems
摘要
申请公布号	US2784264(A)	申请公布日期	1957.03.05
申请号	US19530392450	申请日期	1953.11.16
申请人	HARTFORD NATIONAL BANK AND TRUST COMPANY	发明人	HANSEN HENDRIK NICOLAAS;VITHA FRANZ ANTON
分类号	H04B1/74;H04B17/02	主分类号	H04B1/74
代理机构		代理人
主权项
地址

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