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 Jiri Stefanko, Jaroslav Ing Honzak, Jaroslav HroudafiledCriticalJiri Stefanko
Priority to CS844775ApriorityCriticalpatent/CS241182B1/cs
Publication of CS477584A1publicationCriticalpatent/CS477584A1/cs
Publication of CS241182B1publicationCriticalpatent/CS241182B1/cs