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 Jiri Dohnalek, Stanislav OlsakfiledCriticalJiri Dohnalek
Priority to CS86918ApriorityCriticalpatent/CS261619B1/cs
Publication of CS91886A1publicationCriticalpatent/CS91886A1/cs
Publication of CS261619B1publicationCriticalpatent/CS261619B1/cs