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 Peter Ing Piroch, Pavol Ing Demecko, Ambroz PacnarfiledCriticalPeter Ing Piroch
Priority to CS844344ApriorityCriticalpatent/CS252016B1/cs
Publication of CS434484A1publicationCriticalpatent/CS434484A1/cs
Publication of CS252016B1publicationCriticalpatent/CS252016B1/cs