ADDITIONAL SERVICE CONTROL SYSTEM FOR PLURAL CALLS,申请号JP19910252906-传众专利搜索

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发明名称	ADDITIONAL SERVICE CONTROL SYSTEM FOR PLURAL CALLS
摘要
申请公布号	JPH0568275(A)	申请公布日期	1993.03.19
申请号	JP19910252906	申请日期	1991.09.05
申请人	NEC CORP;NEC ENG LTD	发明人	UEHARA YUKIE;TAKEUCHI KENJI
分类号	H04M3/42;H04Q3/545	主分类号	H04M3/42
代理机构		代理人
主权项
地址

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