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Priority claimed from SE8801251Aexternal-prioritypatent/SE8801251D0/en
Priority claimed from PCT/EP1989/000359external-prioritypatent/WO1989009857A1/en
Application filed by Wavin BvfiledCriticalWavin Bv
Publication of NO903358D0publicationCriticalpatent/NO903358D0/en
Publication of NO903358LpublicationCriticalpatent/NO903358L/en