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Application filed by Νικολαος Βαλλιανος, Σπυρος ΤσακωναςfiledCriticalΝικολαος Βαλλιανος
Priority to GR490112240ApriorityCriticalpatent/GR12240B/en
Publication of GR12240BpublicationCriticalpatent/GR12240B/en