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 Zdenek Veznik, Vladimir SevcikfiledCriticalZdenek Veznik
Priority to CS597776ApriorityCriticalpatent/CS184645B1/cs
Publication of CS184645B1publicationCriticalpatent/CS184645B1/cs