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Publication date
Application filed by Antonin Buryska, Frantisek BehalfiledCriticalAntonin Buryska
Priority to CS868044ApriorityCriticalpatent/CS262739B1/en
Publication of CS804486A1publicationCriticalpatent/CS804486A1/en
Publication of CS262739B1publicationCriticalpatent/CS262739B1/en