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发明名称
Network telephone system and main apparatus and telephone terminals used in the network telephone system
摘要
申请公布号
GB2421143(B)
申请公布日期
2007.05.09
申请号
GB20050024210
申请日期
2005.11.28
申请人
KABUSHIKI KAISHA TOSHIBA
发明人
KENICHI KITAZAWA
分类号
H04L29/06;H04L29/08
主分类号
H04L29/06
代理机构
代理人
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