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公开(公告)号：EP1958266A4
公开(公告)日：2012-10-17
申请号：EP06757518
申请日：2006-04-25
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM TAE-YOUB , PARK NAE-MAN , SUNG GUN-YONG , YANG JONG-HEON
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