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公开(公告)号:KR101984278B1
公开(公告)日:2019-05-30
申请号:KR1020170113421
申请日:2017-09-05
Applicant: 조재훈
Inventor: 김광범 , 조재훈 , 조현용
IPC: F16L33/207 , F16L33/26 , F16L25/12
公开(公告)号:KR3009527690000S
公开(公告)日:2018-04-17
申请号:KR3020170028147
申请日:2017-06-19
Designer: 김광범 , 조재훈 , 조현용
公开(公告)号:KR3009527680000S
申请号:KR3020170028146