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Priority claimed from US07/345,343external-prioritypatent/US5020600A/en
Priority claimed from US07/377,230external-prioritypatent/US4934460A/en
Application filed by Baker Hughes IncfiledCriticalBaker Hughes Inc
Priority to NO902680ApriorityCriticalpatent/NO304900B1/no
Publication of NO902680D0publicationCriticalpatent/NO902680D0/no
Publication of NO902680LpublicationCriticalpatent/NO902680L/no
Publication of NO304900B1publicationCriticalpatent/NO304900B1/no