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 Jaros, Karel Ing Otsal, Lubomir Ing Mladek, Jiri KolacekfiledCriticalVaclav Ing Jaros
Priority to CS865727ApriorityCriticalpatent/CS255724B1/en
Publication of CS572786A1publicationCriticalpatent/CS572786A1/en
Publication of CS255724B1publicationCriticalpatent/CS255724B1/en