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 Tomas Dr NachtmannfiledCriticalTomas Dr Nachtmann
Priority to CS852912ApriorityCriticalpatent/CS255814B1/en
Publication of CS291285A1publicationCriticalpatent/CS291285A1/en
Publication of CS255814B1publicationCriticalpatent/CS255814B1/en