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公开(公告)号:KR102003357B1
公开(公告)日:2019-07-24
申请号:KR1020170163470
申请日:2017-11-30
Applicant: 포항공과대학교 산학협력단
Inventor: 손준우 , 김영광 , 유상배
IPC: C01G31/02