TELEPHONE EXCHANGE NETWORKS.,申请号IED16207-传众专利搜索

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发明名称	TELEPHONE EXCHANGE NETWORKS.
摘要
申请公布号	IE16207(L)	申请公布日期	1939.12.15
申请号	IED16207	申请日期	1939.06.14
申请人	ASSOCIATED ELECTRIC LABORATORIES INC.	发明人
分类号	H04M3/60;(IPC1-7):H04M3/60	主分类号	H04M3/60
代理机构		代理人
主权项
地址

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