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 Jiri Ing Jecmen, Frantisek Doc Ing Csc Rieger, Ditl Pavel, Vladimir Ing MatenafiledCriticalJiri Ing Jecmen
Priority to CS874347ApriorityCriticalpatent/CS262498B1/en
Publication of CS434787A1publicationCriticalpatent/CS434787A1/en
Publication of CS262498B1publicationCriticalpatent/CS262498B1/en