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 Ladislav Ing Vavrinec, Prikryl Petr, Miloslav KosfiledCriticalLadislav Ing Vavrinec
Priority to CS861904ApriorityCriticalpatent/CS255108B1/en
Publication of CS190486A1publicationCriticalpatent/CS190486A1/en
Publication of CS255108B1publicationCriticalpatent/CS255108B1/en