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 Zdenek Eichler, Josef Janota, Josef LarysfiledCriticalZdenek Eichler
Priority to CS688376ApriorityCriticalpatent/CS190775B1/cs
Publication of CS190775B1publicationCriticalpatent/CS190775B1/cs