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Priority claimed from SE8604187Aexternal-prioritypatent/SE461285B/en
Application filed by Wavin BvfiledCriticalWavin Bv
Publication of NO882412LpublicationCriticalpatent/NO882412L/en
Publication of NO882412D0publicationCriticalpatent/NO882412D0/en
Publication of NO164673BpublicationCriticalpatent/NO164673B/en
Publication of NO164673CpublicationCriticalpatent/NO164673C/en