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公开(公告)号:KR102044531B1
公开(公告)日:2019-12-02
申请号:KR1020180074953
申请日:2018-06-28
Applicant: 조선대학교산학협력단
Inventor: 신주현 , 김선미 , 임원철
IPC: A63H33/00 , A63H11/02 , A63H5/00 , A63H29/22 , F21V23/04 , F21Y115/10