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 Vodsedalek Jaroslav, Straka FrantisekfiledCriticalVodsedalek Jaroslav
Priority to CS867903ApriorityCriticalpatent/CS260505B1/en
Publication of CS790386A1publicationCriticalpatent/CS790386A1/en
Publication of CS260505B1publicationCriticalpatent/CS260505B1/en