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 Kroupa Jaroslav, Jiri PodstatafiledCriticalKroupa Jaroslav
Priority to CS878680ApriorityCriticalpatent/CS264678B1/en
Publication of CS868087A1publicationCriticalpatent/CS868087A1/en
Publication of CS264678B1publicationCriticalpatent/CS264678B1/en