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 Josef Ing Pohanka, Oldrich Ing SvecfiledCriticalJosef Ing Pohanka
Priority to CS854801ApriorityCriticalpatent/CS255827B1/en
Publication of CS480185A1publicationCriticalpatent/CS480185A1/en
Publication of CS255827B1publicationCriticalpatent/CS255827B1/en