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 Bedrich Ing Pribyl, Josef Urbanec, Jan Hanacek, Eva MalkovafiledCriticalBedrich Ing Pribyl
Priority to CS826340ApriorityCriticalpatent/CS231846B1/cs
Publication of CS634082A1publicationCriticalpatent/CS634082A1/cs
Publication of CS231846B1publicationCriticalpatent/CS231846B1/cs