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公开(公告)号:KR101960736B1
公开(公告)日:2019-03-21
申请号:KR1020180048319
申请日:2018-04-26
Applicant: (주)에이투유정보통신
Inventor: 김성희 , 정성현
IPC: G06F8/654 , H04W4/60