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公开(公告)号:KR102124584B1
公开(公告)日:2020-06-18
申请号:KR1020180048731
申请日:2018-04-26
Applicant: 성균관대학교산학협력단
Inventor: 김진구 , 자비단
IPC: E04H9/02 , F16F7/14