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Priority claimed from US06/440,657external-prioritypatent/US4431828A/en
Priority claimed from US06/440,641external-prioritypatent/US4435578A/en
Priority claimed from FI834088Aexternal-prioritypatent/FI77247C/en
Application filed by PfizerfiledCriticalPfizer
Publication of FI880465A0publicationCriticalpatent/FI880465A0/en
Publication of FI880465ApublicationCriticalpatent/FI880465A/en