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Application filed by Sigurd SondresenfiledCriticalSigurd Sondresen
Priority to NO903492ApriorityCriticalpatent/NO170839C/no
Publication of NO903492D0publicationCriticalpatent/NO903492D0/no
Publication of NO903492LpublicationCriticalpatent/NO903492L/no
Publication of NO170839BpublicationCriticalpatent/NO170839B/no
Publication of NO170839CpublicationCriticalpatent/NO170839C/no