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 Karel Prochazka, Eva Ing Zabojnikova, Klecan Vaclav, Bohumil Mudr TurekfiledCriticalKarel Prochazka
Priority to CS841388ApriorityCriticalpatent/CS240810B1/en
Publication of CS138884A1publicationCriticalpatent/CS138884A1/en
Publication of CS240810B1publicationCriticalpatent/CS240810B1/en