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Priority claimed from DE3814699Aexternal-prioritypatent/DE3814699C1/en
Priority claimed from DE3912270Aexternal-prioritypatent/DE3912270A1/en
Application filed by Holger KnappefiledCriticalHolger Knappe
Application grantedgrantedCritical
Publication of ATE79356T1publicationCriticalpatent/ATE79356T1/en