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 Volak ZdenekfiledCriticalVolak Zdenek
Priority to CS854589ApriorityCriticalpatent/CS251806B1/en
Publication of CS458985A1publicationCriticalpatent/CS458985A1/en
Publication of CS251806B1publicationCriticalpatent/CS251806B1/en