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公开(公告)号:KR102050967B1
公开(公告)日:2019-12-02
申请号:KR1020170030557
申请日:2017-03-10
Applicant: 서강대학교산학협력단
Inventor: 김홍석 , 류승형 , 최요환 , 김장겸
IPC: H02J3/32