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
Application filed by Ici PlcfiledCriticalIci Plc
Priority claimed from EP82305029Aexternal-prioritypatent/EP0076606B1/de
Application grantedgrantedCritical
Publication of ATE17869T1publicationCriticalpatent/ATE17869T1/de