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Application filed by Arne Lisebrekke, Helge Olaf OsmundsenfiledCriticalArne Lisebrekke
Priority to NO830994ApriorityCriticalpatent/NO151806C/en
Publication of NO830994LpublicationCriticalpatent/NO830994L/en
Publication of NO151806BpublicationCriticalpatent/NO151806B/en
Publication of NO151806CpublicationCriticalpatent/NO151806C/en