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Application filed by Jakab Vojtech, Kollarik Dusan, Zsigo ZoltanfiledCriticalJakab Vojtech
Priority to CS868066ApriorityCriticalpatent/CS257371B1/en
Publication of CS806686A1publicationCriticalpatent/CS806686A1/en
Publication of CS257371B1publicationCriticalpatent/CS257371B1/en