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公开(公告)号:KR101969901B1
公开(公告)日:2019-04-17
申请号:KR1020170178633
申请日:2017-12-22
Applicant: 경일대학교산학협력단
Inventor: 김용대 , 이도윤 , 정은상 , 이은택 , 권세진
IPC: F02K9/62 , F02K9/52 , B64G1/26