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公开(公告)号:KR102144636B1
公开(公告)日:2020-08-13
申请号:KR1020190072342
申请日:2019-06-18
Applicant: 숭실대학교산학협력단
Inventor: 신오순 , 엄준수 , 강길모 , 김현민
IPC: H04W40/04 , H04W40/22 , H04W4/70