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 Josef JirikfiledCriticalJosef Jirik
Priority to CS888915ApriorityCriticalpatent/CS269638B1/en
Publication of CS891588A1publicationCriticalpatent/CS891588A1/en
Publication of CS269638B1publicationCriticalpatent/CS269638B1/en