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Application filed by Vladimir Ing Moravec, Cestmir Ing VeselyfiledCriticalVladimir Ing Moravec
Priority to CS829317ApriorityCriticalpatent/CS238960B1/cs
Publication of CS931782A1publicationCriticalpatent/CS931782A1/cs
Publication of CS238960B1publicationCriticalpatent/CS238960B1/cs