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发明名称
METHOD AND APPARATUS FOR PROVIDING CALL BACK SERVICE
摘要
申请公布号
KR20050091439(A)
申请公布日期
2005.09.15
申请号
KR20040016890
申请日期
2004.03.12
申请人
DIGITALWAVE, INC.
发明人
OH, SI YOUNG;LEE, YUN KYUNG;YUN, CHANG SOB
分类号
H04M3/42
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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