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公开(公告)号:KR101979510B1
公开(公告)日:2019-08-28
申请号:KR1020170108953
申请日:2017-08-28
Applicant: 조선대학교산학협력단
Inventor: 조창근 , 김용춘
IPC: B28B7/06 , B28B7/34 , B28B7/00