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公开(公告)号:KR1019910008009A
公开(公告)日:1991-05-30
申请号:KR1019890014753
申请日:1989-10-14
Applicant: 한국과학기술연구원
Inventor: 엄성진 , 최형수 , 문두경 , 박정열
IPC: C08G63/02
Abstract: 내용 없음