Saved successfully
Save failed
Saved Successfully
Save Failed
公开(公告)号:KR1019910016829A
公开(公告)日:1991-11-05
申请号:KR1019900004042
申请日:1990-03-26
Applicant: 한국과학기술연구원
Inventor: 김정엽 , 양성식
IPC: C08J5/18
Abstract: 내용 없음