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发明名称
A push-to-talk over cellular voice communication system
摘要
申请公布号
GB0503151(D0)
申请公布日期
2005.03.23
申请号
GB20050003151
申请日期
2005.02.15
申请人
NEC CORPORATION
发明人
分类号
G06F13/00;H04B7/24;H04B7/26;H04Q7/20;H04Q7/22;H04Q7/28;H04Q7/38
主分类号
G06F13/00
代理机构
代理人
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