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Application filed by Trebichavsky Ctibor, Frantisek Redaj, Jan NemsakfiledCriticalTrebichavsky Ctibor
Priority to CS846966ApriorityCriticalpatent/CS254006B1/en
Publication of CS696684A1publicationCriticalpatent/CS696684A1/en
Publication of CS254006B1publicationCriticalpatent/CS254006B1/en