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Application filed by Sverre Jan HelgesenfiledCriticalSverre Jan Helgesen
Priority to NO873062ApriorityCriticalpatent/NO162125C/no
Publication of NO873062D0publicationCriticalpatent/NO873062D0/no
Publication of NO873062LpublicationCriticalpatent/NO873062L/no
Publication of NO162125BpublicationCriticalpatent/NO162125B/no
Publication of NO162125CpublicationCriticalpatent/NO162125C/no