Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1019860005983Aexternal-prioritypatent/KR880000494B1/ko
Priority claimed from KR1019860005984Aexternal-prioritypatent/KR900004911B1/ko
Application filed by Kolon IncfiledCriticalKolon Inc
Priority claimed from EP87302049Aexternal-prioritypatent/EP0246732B1/de
Application grantedgrantedCritical
Publication of ATE76118T1publicationCriticalpatent/ATE76118T1/de