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 Bohuslav Novak, Libor Ing TeichmannfiledCriticalBohuslav Novak
Priority to CS832221ApriorityCriticalpatent/CS236052B1/en
Publication of CS222183A1publicationCriticalpatent/CS222183A1/en
Publication of CS236052B1publicationCriticalpatent/CS236052B1/en