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公开(公告)号:KR101986798B1
公开(公告)日:2019-09-30
申请号:KR1020170175680
申请日:2017-12-20
Applicant: 충남대학교산학협력단
Inventor: 장경선 , 성수현 , 강서연 , 강혜종 , 박은비
IPC: A47B23/06 , B42D17/00 , H05B37/02 , G06K9/00 , F21V23/04 , H04M1/725 , H04M1/04