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Priority claimed from GB888814479Aexternal-prioritypatent/GB8814479D0/en
Priority claimed from GB888816752Aexternal-prioritypatent/GB8816752D0/en
Application filed by Unilever NvfiledCriticalUnilever Nv
Priority claimed from EP19890201572external-prioritypatent/EP0347009B1/de
Application grantedgrantedCritical
Publication of ATE79217T1publicationCriticalpatent/ATE79217T1/de