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 GB848427223Aexternal-prioritypatent/GB8427223D0/en
Priority claimed from GB848427224Aexternal-prioritypatent/GB8427224D0/en
Application filed by Wellcome FoundfiledCriticalWellcome Found
Priority claimed from EP85304694Aexternal-prioritypatent/EP0167385B1/en
Application grantedgrantedCritical
Publication of ATE73779T1publicationCriticalpatent/ATE73779T1/en