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发明名称
VIDEO CONFERENCE COMMUNICATION SYSTEM AMONG FIELD MULTIPLEX MULTI-POINTS
摘要
申请公布号
JPH04122185(A)
申请公布日期
1992.04.22
申请号
JP19900243156
申请日期
1990.09.13
申请人
NEC CORP
发明人
IWASAKI JUN
分类号
H04N7/15;H04M3/56
主分类号
H04N7/15
代理机构
代理人
主权项
地址
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