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 Uhlir Miroslav, Jaroslava Dvorakova, Beranek Ivan, Jiri Ing VeselyfiledCriticalUhlir Miroslav
Priority to CS875410ApriorityCriticalpatent/CS267472B1/en
Publication of CS541087A1publicationCriticalpatent/CS541087A1/en
Publication of CS267472B1publicationCriticalpatent/CS267472B1/en