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Application filed by Ferenc Laszlo, Imre Halasz, Janos RakifiledCriticalFerenc Laszlo
Priority to HU117391ApriorityCriticalpatent/HU208406B/en
Publication of HU911173D0publicationCriticalpatent/HU911173D0/en
Publication of HU208406BpublicationCriticalpatent/HU208406B/en