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发明名称
Methode zum Aufbau einer audiovisuellen Nachrichtenverbindung zwischen mehreren Stationen.
摘要
申请公布号
DE68913616(T2)
申请公布日期
1994.06.16
申请号
DE19896013616T
申请日期
1989.07.27
申请人
AMERICAN TELEPHONE AND TELEGRAPH CO., NEW YORK, N.Y.
发明人
MAHMOUD, M. FATEIN, MIDDLETOWN NEW JERSEY 07748
分类号
H04M3/56;H04N7/15;H04N7/20;(IPC1-7):H04N7/15
主分类号
H04M3/56
代理机构
代理人
主权项
地址
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