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发明名称
Differential Voice Rate Service System and Method for the Same
摘要
申请公布号
KR101102765(B1)
申请公布日期
2012.01.03
申请号
KR20060001638
申请日期
2006.01.06
申请人
发明人
分类号
H04B7/26;H04M3/22
主分类号
H04B7/26
代理机构
代理人
主权项
地址
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