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 Severin ZdenekfiledCriticalSeverin Zdenek
Priority to CS875038ApriorityCriticalpatent/CS260936B1/en
Publication of CS503887A1publicationCriticalpatent/CS503887A1/en
Publication of CS260936B1publicationCriticalpatent/CS260936B1/en