TOLL TICKETING TELEPHONE EXCHANGE,申请号CAD607308-传众专利搜索

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发明名称	TOLL TICKETING TELEPHONE EXCHANGE
摘要
申请公布号	CA607308(A)	申请公布日期	1960.10.25
申请号	CAD607308	申请日期
申请人	NORTH ELECTRIC COMPANY	发明人	ARNE OXAAL
分类号		主分类号
代理机构		代理人
主权项
地址

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