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Priority claimed from US06/483,061external-prioritypatent/US4480047A/en
Publication of NO900302LpublicationCriticalpatent/NO900302L/en
Application filed by Ashland Oil IncfiledCriticalAshland Oil Inc
Priority to NO900302ApriorityCriticalpatent/NO172478C/en
Publication of NO900302D0publicationCriticalpatent/NO900302D0/en
Publication of NO172478BpublicationCriticalpatent/NO172478B/en
Publication of NO172478CpublicationCriticalpatent/NO172478C/en