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 Csc Lat, Lumir Puda, Vasil Ing Waliszewski, Navratil TomasfiledCriticalFrantisek Ing Csc Lat
Priority to CS635888ApriorityCriticalpatent/CS273472B1/en
Publication of CS635888A1publicationCriticalpatent/CS635888A1/en
Publication of CS273472B1publicationCriticalpatent/CS273472B1/en