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 Frantisek Ing Barta, Vladimir Ing Jager, Miloslav Slauf, Stanislav KozelfiledCriticalFrantisek Ing Barta
Priority to CS845122ApriorityCriticalpatent/CS239544B1/en
Publication of CS512284A1publicationCriticalpatent/CS512284A1/en
Publication of CS239544B1publicationCriticalpatent/CS239544B1/en