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Publication date
Application filed by Hans Erik SyltenfiledCriticalHans Erik Sylten
Priority to NO880646ApriorityCriticalpatent/NO165171C/no
Publication of NO880646D0publicationCriticalpatent/NO880646D0/no
Publication of NO880646LpublicationCriticalpatent/NO880646L/no
Publication of NO165171BpublicationCriticalpatent/NO165171B/no
Publication of NO165171CpublicationCriticalpatent/NO165171C/no