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 Oldrich Sekanina, Jiri Matusinsky, Bronislav Rzeszutko, Jiri Ing KasparekfiledCriticalOldrich Sekanina
Priority to CS894460ApriorityCriticalpatent/CS446089A2/en
Publication of CS446089A2publicationCriticalpatent/CS446089A2/en