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发明名称
COLLECT CALL SERVICE PROVIDING SYSTEM AND COLLECT CALL SERVICE PROVIDING METHOD
摘要
申请公布号
KR101206271(B1)
申请公布日期
2012.11.29
申请号
KR20080097162
申请日期
2008.10.02
申请人
发明人
分类号
H04M3/428
主分类号
H04M3/428
代理机构
代理人
主权项
地址
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