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 Jan Skrepek, Zdenek Kochta, Vaclav SokolfiledCriticalJan Skrepek
Priority to CS843374ApriorityCriticalpatent/CS240865B1/en
Publication of CS337484A1publicationCriticalpatent/CS337484A1/en
Publication of CS240865B1publicationCriticalpatent/CS240865B1/en