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Priority claimed from DE19772747085external-prioritypatent/DE2747085A1/en
Application filed by Koch WolfgangfiledCriticalKoch Wolfgang
Priority claimed from DD23269481Aexternal-prioritypatent/DD200702A1/en
Publication of ATA575078ApublicationCriticalpatent/ATA575078A/en
Application grantedgrantedCritical
Publication of AT377429BpublicationCriticalpatent/AT377429B/en