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Application filed by Olav G FoerelandfiledCriticalOlav G Foereland
Priority to NO790815ApriorityCriticalpatent/NO142701C/en
Publication of NO790815LpublicationCriticalpatent/NO790815L/en
Publication of NO142701BpublicationCriticalpatent/NO142701B/en
Publication of NO142701CpublicationCriticalpatent/NO142701C/en