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Priority claimed from US06/700,584external-prioritypatent/US4611607A/en
Application filed by Brown & Williamson TobaccofiledCriticalBrown & Williamson Tobacco
Priority to FI894894ApriorityCriticalpatent/FI894894A0/fi
Publication of FI894894A0publicationCriticalpatent/FI894894A0/fi