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Application filed by Rudolg Bartosek, Vojtech Ing Myek, Josef Ing PodmolfiledCriticalRudolg Bartosek
Priority to CS869745ApriorityCriticalpatent/CS257438B1/en
Publication of CS974586A1publicationCriticalpatent/CS974586A1/en
Publication of CS257438B1publicationCriticalpatent/CS257438B1/en