Saved successfully
Save failed
Saved Successfully
Save Failed
公开(公告)号:KR2019890002290U
公开(公告)日:1989-03-28
申请号:KR2019870012181
申请日:1987-07-25
Applicant: 한국과학기술연구원
Inventor: 박건유 , 정문조 , 김재호
IPC: C08F2/04