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 Pexidr, Josef Pasek, Bohumir Dvorak, Jaroslav Marek, Karel BancirfiledCriticalVaclav Pexidr
Priority to CS822775ApriorityCriticalpatent/CS189184B3/cs
Publication of CS189184B3publicationCriticalpatent/CS189184B3/cs