VOICE CONFERENCE DEVICE,申请号JP19910345922-传众专利搜索

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发明名称	VOICE CONFERENCE DEVICE
摘要
申请公布号	JPH05183473(A)	申请公布日期	1993.07.23
申请号	JP19910345922	申请日期	1991.12.27
申请人	NEC CORP	发明人	SASADA TAISUKE
分类号	H04B1/64;H04B3/23;H04B14/04	主分类号	H04B1/64
代理机构		代理人
主权项
地址

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