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Priority claimed from US07/870,858external-prioritypatent/US5200433A/en
Application filed by Shell Oil CofiledCriticalShell Oil Co
Publication of NO943945D0publicationCriticalpatent/NO943945D0/en
Publication of NO943945LpublicationCriticalpatent/NO943945L/en
Publication of NO302299B1publicationCriticalpatent/NO302299B1/en