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发明名称
METHOD AND SYSTEM FOR PROVIDING WIRELESS DATA SERVICE FOR PREPAID SUBSCRIBER WHO ACCOUNT BALANCE IS EXHAUSTED
摘要
申请公布号
KR20060002122(A)
申请公布日期
2006.01.09
申请号
KR20040051042
申请日期
2004.07.01
申请人
KTFREETEL CO., LTD.
发明人
CHOI, WOO HYUNG;JI, HYUN WOOK
分类号
H04L12/14
主分类号
H04L12/14
代理机构
代理人
主权项
地址
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