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Application filed by Svajgl Oldrich, Pokorny Petr, Josef Ing SubertfiledCriticalSvajgl Oldrich
Priority to CS879793ApriorityCriticalpatent/CS270696B1/en
Publication of CS979387A1publicationCriticalpatent/CS979387A1/en
Publication of CS270696B1publicationCriticalpatent/CS270696B1/en