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Priority claimed from US07/069,058external-prioritypatent/US4882187A/en
Application filed by Unilever NvfiledCriticalUnilever Nv
Priority claimed from EP19880201375external-prioritypatent/EP0297690B1/en
Application grantedgrantedCritical
Publication of ATE63040T1publicationCriticalpatent/ATE63040T1/en