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Application filed by Lubomir Ing Vorel, Josef Ing Banovec, Milan Ing Konarik, Oldrich VytopilfiledCriticalLubomir Ing Vorel
Priority to CS838419ApriorityCriticalpatent/CS236580B1/en
Publication of CS841983A1publicationCriticalpatent/CS841983A1/en
Publication of CS236580B1publicationCriticalpatent/CS236580B1/en