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Publication date
Priority claimed from NO941357Aexternal-prioritypatent/NO178850C/en
Application filed by Josef FiltvedtfiledCriticalJosef Filtvedt
Priority to NO951783ApriorityCriticalpatent/NO178851C/en
Publication of NO951783D0publicationCriticalpatent/NO951783D0/en
Publication of NO951783LpublicationCriticalpatent/NO951783L/en
Publication of NO178851BpublicationCriticalpatent/NO178851B/en
Publication of NO178851CpublicationCriticalpatent/NO178851C/en