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 Ficek, Jan HolubfiledCriticalZdenek Ficek
Priority to CS737977ApriorityCriticalpatent/CS193326B1/cs
Publication of CS193326B1publicationCriticalpatent/CS193326B1/cs