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 Miroslav Kvapilik, Oldrich Ing Simonek, Pavel DrhafiledCriticalMiroslav Kvapilik
Priority to CS887808ApriorityCriticalpatent/CS780888A1/cs
Publication of CS780888A1publicationCriticalpatent/CS780888A1/cs