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Application filed by Stepita Matej, Ladislav Ing Bystricky, Ondrus ImrichfiledCriticalStepita Matej
Priority to CS865752ApriorityCriticalpatent/CS264954B1/en
Publication of CS575286A1publicationCriticalpatent/CS575286A1/en
Publication of CS264954B1publicationCriticalpatent/CS264954B1/en