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 Villamos Ipari Kutato IntezetfiledCriticalVillamos Ipari Kutato Intezet
Priority to HU802972ApriorityCriticalpatent/HU182256B/en
Publication of HU182256BpublicationCriticalpatent/HU182256B/en