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 Vladimir Machek, Jiri Hanika, Karel Sporka, Vlastimil Ruzicka, Leos JanacekfiledCriticalVladimir Machek
Priority to CS275781ApriorityCriticalpatent/CS222469B1/cs
Publication of CS222469B1publicationCriticalpatent/CS222469B1/cs