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 Karel BabkafiledCriticalKarel Babka
Priority to CS865055ApriorityCriticalpatent/CS264519B1/en
Publication of CS505586A1publicationCriticalpatent/CS505586A1/en
Publication of CS264519B1publicationCriticalpatent/CS264519B1/en