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Application filed by Harry Hansen, Sveinung JensenfiledCriticalHarry Hansen
Priority to NO891671ApriorityCriticalpatent/NO166984C/en
Publication of NO891671D0publicationCriticalpatent/NO891671D0/en
Publication of NO891671LpublicationCriticalpatent/NO891671L/en
Publication of NO166984BpublicationCriticalpatent/NO166984B/en
Publication of NO166984CpublicationCriticalpatent/NO166984C/en