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Priority claimed from HU80801893Aexternal-prioritypatent/HU180372B/en
Application filed by Budapesti Radiotechnikai GyarfiledCriticalBudapesti Radiotechnikai Gyar
Publication of NO821009LpublicationCriticalpatent/NO821009L/en
Publication of NO158318BpublicationCriticalpatent/NO158318B/en
Publication of NO158318CpublicationCriticalpatent/NO158318C/en