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Application filed by Ιωαννης Καβαλλακης, Βασιλειος ΚαλλιγερηςfiledCriticalΙωαννης Καβαλλακης
Priority to GR580118967ApriorityCriticalpatent/GR18967B/el
Publication of GR18967BpublicationCriticalpatent/GR18967B/el