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公开(公告)号:KR101950411B1
公开(公告)日:2019-02-20
申请号:KR1020170054951
申请日:2017-04-28
Applicant: 전남대학교산학협력단
Inventor: 이광민 , 이순현
IPC: B24D18/00 , A61C3/06 , C09K3/14 , B24D3/10