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Application filed by Beran Miroslav, Fiala Frantisek, Petr Ing BurianfiledCriticalBeran Miroslav
Priority to CS865791ApriorityCriticalpatent/CS265476B1/en
Publication of CS579186A1publicationCriticalpatent/CS579186A1/en
Publication of CS265476B1publicationCriticalpatent/CS265476B1/en