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 Koska, Ctibor Ing Bujdos, Petr Ing Gabriel, Stanislav SmerdafiledCriticalVaclav Ing Koska
Priority to CS856071ApriorityCriticalpatent/CS264905B1/en
Publication of CS607185A1publicationCriticalpatent/CS607185A1/en
Publication of CS264905B1publicationCriticalpatent/CS264905B1/en