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发明名称
ISDN MULTIMEDIA COMMUNICATIONS SYSTEM
摘要
申请公布号
US5206859(A)
申请公布日期
1993.04.27
申请号
US19910649862
申请日期
1991.02.05
申请人
NEC CORPORATION
发明人
ANZAI, MASAKI
分类号
H04N7/173;G06F17/30;H04L29/12;H04M11/06;H04N7/15;H04N7/60;H04Q11/04
主分类号
H04N7/173
代理机构
代理人
主权项
地址
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