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Application filed by Leif OrstadfiledCriticalLeif Orstad
Priority to NO790438ApriorityCriticalpatent/NO142455C/no
Publication of NO790438LpublicationCriticalpatent/NO790438L/no
Publication of NO142455BpublicationCriticalpatent/NO142455B/no
Publication of NO142455CpublicationCriticalpatent/NO142455C/no