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Priority claimed from SE8504163Aexternal-prioritypatent/SE453963B/sv
Application filed by Ingvar Andersson, Jan WadsteinfiledCriticalIngvar Andersson
Publication of NO871849LpublicationCriticalpatent/NO871849L/no
Publication of NO871849D0publicationCriticalpatent/NO871849D0/no
Publication of NO161653BpublicationCriticalpatent/NO161653B/no
Publication of NO161653CpublicationCriticalpatent/NO161653C/no