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 Jaroslav Rehurek, Milos SetnickafiledCriticalJaroslav Rehurek
Priority to CS735077ApriorityCriticalpatent/CS190280B1/cs
Publication of CS190280B1publicationCriticalpatent/CS190280B1/cs