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公开(公告)号:KR102133979B1
公开(公告)日:2020-07-14
申请号:KR1020180078030
申请日:2018-07-05
Applicant: 세종대학교산학협력단
Inventor: 박경순 , 피준우 , 김동훈 , 정건우 , 홍호용
IPC: C01G45/00 , C09C1/62