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 Josef Stary, Zdenek Svec, Vaclav DivisfiledCriticalJosef Stary
Priority to CS885995ApriorityCriticalpatent/CS269344B1/en
Publication of CS599588A1publicationCriticalpatent/CS599588A1/en
Publication of CS269344B1publicationCriticalpatent/CS269344B1/en