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 Zaloudek Josef, Jaroslav Dipl Tech MatoulekfiledCriticalZaloudek Josef
Priority to CS855621ApriorityCriticalpatent/CS253816B1/en
Publication of CS562185A1publicationCriticalpatent/CS562185A1/en
Publication of CS253816B1publicationCriticalpatent/CS253816B1/en