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 Ludek Dlouhy, Oldrich ObodafiledCriticalLudek Dlouhy
Priority to CS619076ApriorityCriticalpatent/CS182178B1/cs
Publication of CS182178B1publicationCriticalpatent/CS182178B1/cs