COMMUNICATION LINE EXCHANGING SYSTEM AND COMMUNICATION LINE EXCHANGE,申请号JP19910274298-传众专利搜索

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发明名称	COMMUNICATION LINE EXCHANGING SYSTEM AND COMMUNICATION LINE EXCHANGE
摘要
申请公布号	JPH05114955(A)	申请公布日期	1993.05.07
申请号	JP19910274298	申请日期	1991.10.22
申请人	NEC CORP	发明人	YAMAGA TAKASUKE
分类号	H04M7/00	主分类号	H04M7/00
代理机构		代理人
主权项
地址

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