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 Vonasek Frantisek, Martin Ing Csc Prudel, Petr Ing Buchal, Ladislav ZaloudekfiledCriticalVonasek Frantisek
Priority to CS875777ApriorityCriticalpatent/CS265386B1/en
Publication of CS577787A1publicationCriticalpatent/CS577787A1/en
Publication of CS265386B1publicationCriticalpatent/CS265386B1/en