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 Vaclav Ing Hartych, Bohumil Konecny, Vladislav Liska, Lubomir Ing Lustyk, Josef Ing Schneeweiss, Zdenek GrusfiledCriticalVaclav Ing Hartych
Priority to CS872079ApriorityCriticalpatent/CS260713B1/en
Publication of CS207987A1publicationCriticalpatent/CS207987A1/en
Publication of CS260713B1publicationCriticalpatent/CS260713B1/en