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公开(公告)号:KR101987599B1
公开(公告)日:2019-06-10
申请号:KR1020180135221
申请日:2018-11-06
Applicant: 조형석
Inventor: 조형석 , 안성국 , 임성빈
IPC: F28D9/00 , F28F3/04 , F28F3/08
公开(公告)号:KR101987600B1
申请号:KR1020180135247