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Priority claimed from DE2127977Aexternal-prioritypatent/DE2127977C3/de
Priority claimed from DE19712138653external-prioritypatent/DE2138653A1/de
Priority claimed from DE19712146330external-prioritypatent/DE2146330A1/de
Application filed by Gerhard Hohlbein Ing, Heinrich Huppmann IngfiledCriticalGerhard Hohlbein Ing
Application grantedgrantedCritical
Publication of AT320566BpublicationCriticalpatent/AT320566B/de