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 Karel Bartos, Lubomir KlimentfiledCriticalKarel Bartos
Priority to CS696476ApriorityCriticalpatent/CS183864B1/cs
Publication of CS183864B1publicationCriticalpatent/CS183864B1/cs