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 RysavyfiledCriticalJaroslav Rysavy
Priority to CS87376ApriorityCriticalpatent/CS186401B1/cs
Publication of CS186401B1publicationCriticalpatent/CS186401B1/cs