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Application filed by Zbynek Ing Franek, Zavisky JaromirfiledCriticalZbynek Ing Franek
Priority to CS480588ApriorityCriticalpatent/CS272592B1/en
Publication of CS480588A1publicationCriticalpatent/CS480588A1/en
Publication of CS272592B1publicationCriticalpatent/CS272592B1/en