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Priority claimed from SE7908379Aexternal-prioritypatent/SE431308B/sv
Publication of NO833270LpublicationCriticalpatent/NO833270L/no
Application filed by Bror Olof HaegerfiledCriticalBror Olof Haeger
Publication of NO156077BpublicationCriticalpatent/NO156077B/no
Publication of NO156077CpublicationCriticalpatent/NO156077C/no