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 Jan Smidrkal, Miroslav SemonskyfiledCriticalJan Smidrkal
Priority to CS557777ApriorityCriticalpatent/CS189485B1/en
Publication of CS189485B1publicationCriticalpatent/CS189485B1/en