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 Pribyslav Culka, Blazej KoehlerfiledCriticalPribyslav Culka
Priority to CS882075ApriorityCriticalpatent/CS193698B1/cs
Publication of CS193698B1publicationCriticalpatent/CS193698B1/cs