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Application filed by Jaroslav Kolacek, Libor Ing TeichmannfiledCriticalJaroslav Kolacek
Priority to CS85599ApriorityCriticalpatent/CS243314B1/en
Publication of CS59985A1publicationCriticalpatent/CS59985A1/en
Publication of CS243314B1publicationCriticalpatent/CS243314B1/en