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 GB878709480Aexternal-prioritypatent/GB8709480D0/en
Priority claimed from GB878709479Aexternal-prioritypatent/GB8709479D0/en
Application filed by Unilever NvfiledCriticalUnilever Nv
Priority claimed from EP19880200721external-prioritypatent/EP0293022B1/de
Application grantedgrantedCritical
Publication of ATE71809T1publicationCriticalpatent/ATE71809T1/de