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发明名称
Data transfer system capable of selecting a low-cost call type
摘要
申请公布号
GB0315642(D0)
申请公布日期
2003.08.13
申请号
GB20030015642
申请日期
2003.07.03
申请人
NEC CORPORATION
发明人
分类号
H04M11/00;H04W4/24;H04W4/26;H04W48/18;H04W76/04;H04W88/06
主分类号
H04M11/00
代理机构
代理人
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地址
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