Signaling arrangement for two-wire telephone lines,申请号US19480055993-传众专利搜索

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发明名称	Signaling arrangement for two-wire telephone lines
摘要
申请公布号	US2598159(A)	申请公布日期	1952.05.27
申请号	US19480055993	申请日期	1948.10.22
申请人	COMPAGNIE INDUSTRIELLE DES TELEPHONES	发明人	GARDERE HENRI
分类号	H04B3/42	主分类号	H04B3/42
代理机构		代理人
主权项
地址

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