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 Csc Ondrejcek, Alojz Ing MartisikfiledCriticalPeter Ing Csc Ondrejcek
Priority to CS886614ApriorityCriticalpatent/CS269037B1/en
Publication of CS661488A1publicationCriticalpatent/CS661488A1/en
Publication of CS269037B1publicationCriticalpatent/CS269037B1/en