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公开(公告)号:KR101970673B1
公开(公告)日:2019-04-19
申请号:KR1020170018379
申请日:2017-02-09
Applicant: 동명대학교산학협력단
Inventor: 이응주 , 이정화 , 문민국
IPC: G08G1/16 , H05B37/02 , G08G1/095 , G08G1/005