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Application filed by Udnes A S ErlingfiledCriticalUdnes A S Erling
Priority to NO801996ApriorityCriticalpatent/NO147612C/en
Publication of NO801996LpublicationCriticalpatent/NO801996L/en
Publication of NO147612BpublicationCriticalpatent/NO147612B/en
Publication of NO147612CpublicationCriticalpatent/NO147612C/en