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 Sterzinger Marcel, Lubomir KupffiledCriticalSterzinger Marcel
Priority to CS882664ApriorityCriticalpatent/CS269169B1/cs
Publication of CS266488A1publicationCriticalpatent/CS266488A1/cs
Publication of CS269169B1publicationCriticalpatent/CS269169B1/cs