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 Svoboda, Karel Landovsky, Stanislav Ing Zlebek, Josef Ing MasafiledCriticalVaclav Svoboda
Priority to CS88613ApriorityCriticalpatent/CS269132B1/cs
Publication of CS61388A1publicationCriticalpatent/CS61388A1/cs
Publication of CS269132B1publicationCriticalpatent/CS269132B1/cs