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Application filed by Sedlacek Jiri, Josef Ing Csc Pokorny, Mostecky JirifiledCriticalSedlacek Jiri
Priority to CS875922ApriorityCriticalpatent/CS261397B1/en
Publication of CS592287A1publicationCriticalpatent/CS592287A1/en
Publication of CS261397B1publicationCriticalpatent/CS261397B1/en