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 Jaroslav Cervinka, Dalibor BucekfiledCriticalJaroslav Cervinka
Priority to CS449478ApriorityCriticalpatent/CS194300B1/cs
Publication of CS194300B1publicationCriticalpatent/CS194300B1/cs