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公开(公告)号:KR102063880B1
公开(公告)日:2020-02-11
申请号:KR1020180038574
申请日:2018-04-03
Applicant: 김형모
Inventor: 김형모 , 김형욱 , 이정상
IPC: G06Q50/30 , G06Q30/06