ADDITIONAL CALL METHOD FOR CONFERENCE CONNECTION,申请号JP19880242743-传众专利搜索

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发明名称	ADDITIONAL CALL METHOD FOR CONFERENCE CONNECTION
摘要
申请公布号	JPH0290772(A)	申请公布日期	1990.03.30
申请号	JP19880242743	申请日期	1988.09.27
申请人	NEC CORP	发明人	OGATA ASAO
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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