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Priority claimed from US06/646,112external-prioritypatent/US4687376A/en
Publication of NO882166LpublicationCriticalpatent/NO882166L/en
Application filed by Santa Fe Int CorpfiledCriticalSanta Fe Int Corp
Priority to NO882166ApriorityCriticalpatent/NO174598C/en
Publication of NO882166D0publicationCriticalpatent/NO882166D0/en
Publication of NO174598BpublicationCriticalpatent/NO174598B/en
Publication of NO174598CpublicationCriticalpatent/NO174598C/en