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Priority claimed from SE7908379Aexternal-prioritypatent/SE431308B/en
Publication of NO833269LpublicationCriticalpatent/NO833269L/en
Application filed by Bror Olof HaegerfiledCriticalBror Olof Haeger
Publication of NO155529BpublicationCriticalpatent/NO155529B/en
Publication of NO155529CpublicationCriticalpatent/NO155529C/en