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Application filed by Knut FjoertoftfiledCriticalKnut Fjoertoft
Priority to NO860648ApriorityCriticalpatent/NO161289C/en
Publication of NO860648LpublicationCriticalpatent/NO860648L/en
Publication of NO161289BpublicationCriticalpatent/NO161289B/en
Publication of NO161289CpublicationCriticalpatent/NO161289C/en