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Priority claimed from DE19792915611external-prioritypatent/DE2915611A1/en
Priority claimed from DE19792937172external-prioritypatent/DE2937172A1/en
Application filed by Boumediene BousahbafiledCriticalBoumediene Bousahba
Priority claimed from EP80101836Aexternal-prioritypatent/EP0017880B1/en
Application grantedgrantedCritical
Publication of ATE6004T1publicationCriticalpatent/ATE6004T1/en