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Application filed by Necas Miroslav, Plechacek Vaclav, Ladislav Ing StastnyfiledCriticalNecas Miroslav
Priority to CS88796ApriorityCriticalpatent/CS265422B1/en
Publication of CS79688A1publicationCriticalpatent/CS79688A1/en
Publication of CS265422B1publicationCriticalpatent/CS265422B1/en