Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ladislav Ing Nemcic, Ladislav Ing Drab, Bozena Ing Bayerova, Pavel Ing Pospisil, Jozef Ing Pijala, Jozef Ing Polko, Ervin Ing Moldrzyk, Vaclav HudecfiledCriticalLadislav Ing Nemcic
Priority to CS887786ApriorityCriticalpatent/CS271977B1/en
Publication of CS778688A1publicationCriticalpatent/CS778688A1/en
Publication of CS271977B1publicationCriticalpatent/CS271977B1/en