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发明名称
Hybrid conferencing system
摘要
申请公布号
EP1024647(B1)
申请公布日期
2007.08.15
申请号
EP19990101911
申请日期
1999.01.29
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
DERMLER, GABRIEL;FLEINER, CLAUDIO;GRAF, MARCEL;HEUSLER, LUKAS S.;TRUONG, HONG LINH
分类号
H04M3/56;H04L12/18;H04L12/44;H04L29/06;H04N7/15
主分类号
H04M3/56
代理机构
代理人
主权项
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