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Application filed by Karel Doc Ing Csc Pecka, Vlastislava Ing Ledererova, Jan Vanura, Mostecky JirifiledCriticalKarel Doc Ing Csc Pecka
Priority to CS884895ApriorityCriticalpatent/CS267248B1/en
Publication of CS489588A1publicationCriticalpatent/CS489588A1/en
Publication of CS267248B1publicationCriticalpatent/CS267248B1/en