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公开(公告)号:KR102040212B1
公开(公告)日:2019-11-04
申请号:KR1020170172211
申请日:2017-12-14
Applicant: 자동차부품연구원
Inventor: 엄지용 , 김성인 , 조민기
IPC: C01G25/00 , C01G23/00