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 Libor Ing Kupec, Jan VitekfiledCriticalLibor Ing Kupec
Priority to CS833492ApriorityCriticalpatent/CS349283A1/en
Publication of CS349283A1publicationCriticalpatent/CS349283A1/en