Improvements in and relating to telephone circuits,申请号GB19600018160-传众专利搜索

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发明名称	Improvements in and relating to telephone circuits
摘要
申请公布号	GB955672(A)	申请公布日期	1964.04.15
申请号	GB19600018160	申请日期	1960.05.23
申请人	BENITO SCIRETTI;GIOVANNI ACETI	发明人
分类号	H04M3/64;H04M9/00;H04Q3/00	主分类号	H04M3/64
代理机构		代理人
主权项
地址

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