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 Radovan Rehak, Ladislav CervenyfiledCriticalRadovan Rehak
Priority to CS757476ApriorityCriticalpatent/CS192707B1/en
Publication of CS192707B1publicationCriticalpatent/CS192707B1/en