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 Krcek, Alois Opravil, Oldrich LupinekfiledCriticalJiri Krcek
Priority to CS11376ApriorityCriticalpatent/CS194323B1/cs
Publication of CS194323B1publicationCriticalpatent/CS194323B1/cs