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Priority claimed from DE3005994Aexternal-prioritypatent/DE3005994C2/de
Publication of NO834110LpublicationCriticalpatent/NO834110L/no
Application filed by Gewerk Schalker EisenhuettefiledCriticalGewerk Schalker Eisenhuette
Publication of NO155495BpublicationCriticalpatent/NO155495B/no
Publication of NO155495CpublicationCriticalpatent/NO155495C/no