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Application filed by Zdenek Karasek, Stanislav Ing ZahradnikfiledCriticalZdenek Karasek
Priority to CS874862ApriorityCriticalpatent/CS265099B1/en
Publication of CS486287A1publicationCriticalpatent/CS486287A1/en
Publication of CS265099B1publicationCriticalpatent/CS265099B1/en