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 Vlastimil Fuchs, Jaroslav HajekfiledCriticalVlastimil Fuchs
Priority to CS887043ApriorityCriticalpatent/CS271146B1/cs
Publication of CS704388A1publicationCriticalpatent/CS704388A1/cs
Publication of CS271146B1publicationCriticalpatent/CS271146B1/cs