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Priority claimed from DE19722203529external-prioritypatent/DE2203529B2/de
Priority claimed from DE19722203530external-prioritypatent/DE2203530C2/de
Priority claimed from NO470072Aexternal-prioritypatent/NO134498C/no
Publication of NO744350LpublicationCriticalpatent/NO744350L/no
Application filed by Reinhard WirtgenfiledCriticalReinhard Wirtgen
Publication of NO135535BpublicationCriticalpatent/NO135535B/no
Publication of NO135535CpublicationCriticalpatent/NO135535C/no
