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 HUEE002309priorityCriticalpatent/HU169523B/hu
Priority to JP1088776Aprioritypatent/JPS51101940A/ja
Priority to DE19762604698prioritypatent/DE2604698A1/de
Priority to GB477476Aprioritypatent/GB1534034A/en
Publication of HU169523BpublicationCriticalpatent/HU169523B/hu