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Application filed by Gyula Szabo, Tibor Farsang, Oszkar KralikfiledCriticalGyula Szabo
Priority to HU566089ApriorityCriticalpatent/HU212531B/en
Publication of HU895660D0publicationCriticalpatent/HU895660D0/en
Publication of HUT64914ApublicationCriticalpatent/HUT64914A/en
Publication of HU212531BpublicationCriticalpatent/HU212531B/en