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 Oldrich Manek, Vaclav Masek, Vladimir Motejl, Jaroslav RimanfiledCriticalOldrich Manek
Priority to CS356877ApriorityCriticalpatent/CS193234B1/en
Publication of CS193234B1publicationCriticalpatent/CS193234B1/en