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公开(公告)号:KR102044341B1
公开(公告)日:2019-11-13
申请号:KR1020170173025
申请日:2017-12-15
Applicant: 전자부품연구원
Inventor: 임선 , 임승환 , 이승용
IPC: E04H17/14 , G08B21/18
公开(公告)号:KR101939218B1
公开(公告)日:2019-01-16
申请号:KR1020170173024
IPC: G08B13/12 , G08B13/10 , G08B25/14