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发明名称
SYSTEM AND METHOD FOR PROVIDING RING BACK TONE SERVICE
摘要
申请公布号
KR20050081586(A)
申请公布日期
2005.08.19
申请号
KR20040009910
申请日期
2004.02.16
申请人
TN CO., LTD.;KO, KWANG SOO
发明人
KO, KWANG SOO
分类号
H04W4/16;(IPC1-7):H04Q7/24
主分类号
H04W4/16
代理机构
代理人
主权项
地址
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