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Application filed by Dag MichelsenfiledCriticalDag Michelsen
Priority to NO911439ApriorityCriticalpatent/NO173401C/no
Publication of NO911439D0publicationCriticalpatent/NO911439D0/no
Publication of NO911439LpublicationCriticalpatent/NO911439L/no
Publication of NO173401BpublicationCriticalpatent/NO173401B/no
Publication of NO173401CpublicationCriticalpatent/NO173401C/no