CALLING SUBSCRIBER PARTY LINE IDENTIFICATION CIRCUIT,申请号CAD846918-传众专利搜索

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发明名称	CALLING SUBSCRIBER PARTY LINE IDENTIFICATION CIRCUIT
摘要
申请公布号	CA846918(A)	申请公布日期	1970.07.14
申请号	CAD846918	申请日期
申请人	INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION	发明人	DOYLE V. CARMODY;JOHN S. WELCH
分类号		主分类号
代理机构		代理人
主权项
地址

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