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 Vladimir Ing Csc Rektorik, Piller Bohumil, Frantisek Ing Csc Volek, Jan Ing JisafiledCriticalVladimir Ing Csc Rektorik
Priority to CS903333ApriorityCriticalpatent/CS333390A3/en
Publication of CS333390A3publicationCriticalpatent/CS333390A3/en