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Application filed by Knut FossumfiledCriticalKnut Fossum
Priority to NO893575ApriorityCriticalpatent/NO168442C/en
Publication of NO893575D0publicationCriticalpatent/NO893575D0/en
Publication of NO893575LpublicationCriticalpatent/NO893575L/en
Publication of NO168442BpublicationCriticalpatent/NO168442B/en
Publication of NO168442CpublicationCriticalpatent/NO168442C/en