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经营范围
发明名称
MULTIMEDIA DOCUMENT CONFERENCING SYSTEM
摘要
申请公布号
EP0829160(A1)
申请公布日期
1998.03.18
申请号
EP19970914010
申请日期
1997.03.27
申请人
NORTEL NETWORKS CORPORATION
发明人
CRADDOCK, A., JULIAN;DIXON, FRED;NG, CHARLES
分类号
H04N7/15;H04L12/18;H04M3/56;H04M7/12;(IPC1-7):H04M3/56;H04L29/06
主分类号
H04N7/15
代理机构
代理人
主权项
地址
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