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Priority claimed from SE8206442Aexternal-prioritypatent/SE433999B/en
Application filed by Wolfgang BronnvallfiledCriticalWolfgang Bronnvall
Publication of NO842836LpublicationCriticalpatent/NO842836L/en
Publication of NO163430BpublicationCriticalpatent/NO163430B/en
Publication of NO163430CpublicationCriticalpatent/NO163430C/en