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Application filed by Budapesti Radiotechnikai GyarfiledCriticalBudapesti Radiotechnikai Gyar
Priority to DK296174ApriorityCriticalpatent/DK147688C/da
Publication of DK296174ApublicationCriticalpatent/DK296174A/da
Publication of DK147688BpublicationCriticalpatent/DK147688B/da
Application grantedgrantedCritical
Publication of DK147688CpublicationCriticalpatent/DK147688C/da