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 Stejskal Alois, Havranek Zdenek, Miroslav Ing Stepanek, Jan Hrdina, Frantisek Cada, Jaroslav SlingrfiledCriticalStejskal Alois
Priority to CS825791ApriorityCriticalpatent/CS232264B1/en
Publication of CS579182A1publicationCriticalpatent/CS579182A1/en
Publication of CS232264B1publicationCriticalpatent/CS232264B1/en