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 Gustav Russ, Katarina Polakova, Bohumil StykfiledCriticalGustav Russ
Priority to CS873612ApriorityCriticalpatent/CS260379B1/en
Publication of CS361287A1publicationCriticalpatent/CS361287A1/en
Publication of CS260379B1publicationCriticalpatent/CS260379B1/en