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Priority claimed from DE2928012Aexternal-prioritypatent/DE2928012C2/en
Priority claimed from DE19792940470external-prioritypatent/DE2940470C2/en
Application filed by Karrer System AgfiledCriticalKarrer System Ag
Priority claimed from EP80104009Aexternal-prioritypatent/EP0022572B1/en
Application grantedgrantedCritical
Publication of ATE7051T1publicationCriticalpatent/ATE7051T1/en