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Application filed by Josef Dipl Tech Svercl, Novak Jan, Zdenek KalabfiledCriticalJosef Dipl Tech Svercl
Priority to CS838081ApriorityCriticalpatent/CS237088B1/cs
Publication of CS808183A1publicationCriticalpatent/CS808183A1/cs
Publication of CS237088B1publicationCriticalpatent/CS237088B1/cs