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 Zdenko Stanicek, Jiri Rucny, Nemcik StanislavfiledCriticalZdenko Stanicek
Priority to CS856719ApriorityCriticalpatent/CS252764B1/en
Publication of CS671985A1publicationCriticalpatent/CS671985A1/en
Publication of CS252764B1publicationCriticalpatent/CS252764B1/en