VOICE CONFERENCE EQUIPMENT,申请号JP19900085568-传众专利搜索

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发明名称	VOICE CONFERENCE EQUIPMENT
摘要
申请公布号	JPH03284040(A)	申请公布日期	1991.12.13
申请号	JP19900085568	申请日期	1990.03.30
申请人	MITSUBISHI ELECTRIC CORP	发明人	HIRANO MIHOKO
分类号	H04M3/56	主分类号	H04M3/56
代理机构		代理人
主权项
地址

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