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Priority claimed from US06/230,059external-prioritypatent/US4347127A/en
Priority claimed from US06/230,058external-prioritypatent/US4347126A/en
Application filed by Standard Oil Co OhiofiledCriticalStandard Oil Co Ohio
Priority claimed from EP19820100636external-prioritypatent/EP0057445B1/en
Application grantedgrantedCritical
Publication of ATE28730T1publicationCriticalpatent/ATE28730T1/en