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发明名称
Billing Method and System Comprising Duplicated Call Check
摘要
申请公布号
KR100476491(B1)
申请公布日期
2005.03.17
申请号
KR20020065816
申请日期
2002.10.28
申请人
发明人
分类号
H04Q1/30;(IPC1-7):H04Q1/30
主分类号
H04Q1/30
代理机构
代理人
主权项
地址
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