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 Vaclav Landa, Jiri Lucek, Frantisek Prusa, Josef Novotny, Oldrich MacnerfiledCriticalVaclav Landa
Priority to CS719177ApriorityCriticalpatent/CS192344B1/cs
Publication of CS192344B1publicationCriticalpatent/CS192344B1/cs