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 Pavel Uhlir, Maxa JaroslavfiledCriticalPavel Uhlir
Priority to CS881552ApriorityCriticalpatent/CS266093B1/cs
Priority to IT8919701Aprioritypatent/IT1228701B/it
Publication of CS155288A1publicationCriticalpatent/CS155288A1/cs
Publication of CS266093B1publicationCriticalpatent/CS266093B1/cs