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Priority claimed from SE8301890Aexternal-prioritypatent/SE435866B/en
Application filed by Inpipe AbfiledCriticalInpipe Ab
Publication of NO844855LpublicationCriticalpatent/NO844855L/en
Publication of NO160875BpublicationCriticalpatent/NO160875B/en
Publication of NO160875CpublicationCriticalpatent/NO160875C/en