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Application filed by Ladislav Szarvasy, Pelegrin Eduard, Ivan Ing IlanovskyfiledCriticalLadislav Szarvasy
Priority to CS843498ApriorityCriticalpatent/CS241586B1/en
Publication of CS349884A1publicationCriticalpatent/CS349884A1/en
Publication of CS241586B1publicationCriticalpatent/CS241586B1/en