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Application filed by Egil Sandnes, John WestervikfiledCriticalEgil Sandnes
Priority to NO853393ApriorityCriticalpatent/NO159153C/en
Publication of NO853393LpublicationCriticalpatent/NO853393L/en
Publication of NO159153BpublicationCriticalpatent/NO159153B/en
Publication of NO159153CpublicationCriticalpatent/NO159153C/en