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Application filed by Jozef Pacala, Peter Ing Nagy, Pavel Ing LeckyfiledCriticalJozef Pacala
Priority to CS854900ApriorityCriticalpatent/CS252510B1/en
Publication of CS490085A1publicationCriticalpatent/CS490085A1/en
Publication of CS252510B1publicationCriticalpatent/CS252510B1/en