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 Volak, Jiri Podhorsky, Zdenek ZapletalfiledCriticalJan Volak
Priority to CS7500004867ApriorityCriticalpatent/CS185352B1/en
Publication of CS185352B1publicationCriticalpatent/CS185352B1/en