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 VancurafiledCriticalJan Vancura
Priority to CS83322ApriorityCriticalpatent/CS231939B1/en
Publication of CS32283A1publicationCriticalpatent/CS32283A1/en
Publication of CS231939B1publicationCriticalpatent/CS231939B1/en