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1.发明公开
公开(公告)号：EP1836659A4
公开(公告)日：2011-01-19
申请号：EP04808632
申请日：2004-12-29
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： HWANG JAE-GAK , CHOI SEONG-HWAN , LEE YONG-JOON , KIM SUNG-WOOK , CHAE JONG-SUK
IPC: G06Q10/00
CPC classification number: G06Q10/06
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