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Priority claimed from DE19712113384external-prioritypatent/DE2113384B2/de
Priority claimed from AT200572Aexternal-prioritypatent/AT317776B/de
Application filed by Efka Werke Kiehn Gmbh FritzfiledCriticalEfka Werke Kiehn Gmbh Fritz
Priority to AT693573ApriorityCriticalpatent/AT332310B/de
Publication of ATA693573ApublicationCriticalpatent/ATA693573A/de
Application grantedgrantedCritical
Publication of AT332310BpublicationCriticalpatent/AT332310B/de