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 filedfiledCritical
Priority to HUOA000491priorityCriticalpatent/HU166137B/hu
Priority to AT928672Aprioritypatent/AT321441B/de
Publication of HU166137BpublicationCriticalpatent/HU166137B/hu