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Priority claimed from NO790171Aexternal-prioritypatent/NO151872C/no
Publication of NO844158LpublicationCriticalpatent/NO844158L/no
Application filed by Discovision AssfiledCriticalDiscovision Ass
Priority to NO844158ApriorityCriticalpatent/NO158702C/no
Publication of NO158702BpublicationCriticalpatent/NO158702B/no
Publication of NO158702CpublicationCriticalpatent/NO158702C/no