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Priority claimed from US06/256,454external-prioritypatent/US4379080A/en
Application filed by Procter & GamblefiledCriticalProcter & Gamble
Priority claimed from EP19820200458external-prioritypatent/EP0063399B2/de
Application grantedgrantedCritical
Publication of ATE18432T1publicationCriticalpatent/ATE18432T1/de