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 Smrkovsky Evzen, Sedivec Jan, Kraft Jaroslav, Jaroslav Ing VasicekfiledCriticalSmrkovsky Evzen
Priority to CS816988ApriorityCriticalpatent/CS273779B1/en
Publication of CS816988A1publicationCriticalpatent/CS816988A1/en
Publication of CS273779B1publicationCriticalpatent/CS273779B1/en