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Application filed by Kostka Frantisek, Pechlat Miroslav, Vaclav Clen Korespondent Zima, Pavel Ing Csc Hasan, Frantisek Ing SvadlenkafiledCriticalKostka Frantisek
Priority to CS885464ApriorityCriticalpatent/CS271152B1/en
Publication of CS546488A1publicationCriticalpatent/CS546488A1/en
Publication of CS271152B1publicationCriticalpatent/CS271152B1/en