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 Brozek Vlastimil, Vladimir Ing Csc Dufek, Stanislav SasakfiledCriticalBrozek Vlastimil
Priority to CS85239ApriorityCriticalpatent/CS243889B1/cs
Publication of CS23985A1publicationCriticalpatent/CS23985A1/cs
Publication of CS243889B1publicationCriticalpatent/CS243889B1/cs