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Priority claimed from DE19833306996external-prioritypatent/DE3306996A1/en
Priority claimed from DE19833308045external-prioritypatent/DE3308045A1/en
Priority claimed from YU360/84Aexternal-prioritypatent/YU43930B/en
Application filed by Shell Int ResearchfiledCriticalShell Int Research
Publication of HRP921361B1publicationCriticalpatent/HRP921361B1/en