Signaling system,申请号US19410390457-传众专利搜索

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发明名称	Signaling system
摘要
申请公布号	US2299479(A)	申请公布日期	1942.10.20
申请号	US19410390457	申请日期	1941.04.26
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	HOLDEN WILLIAM H. T.
分类号	H04L5/24;H04Q3/00	主分类号	H04L5/24
代理机构		代理人
主权项
地址

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