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 DD17092673ApriorityCriticalpatent/DD107848A1/xx
Priority to HUCE001001prioritypatent/HU168187B/hu
Priority to BG2671874Aprioritypatent/BG21429A1/xx
Priority to SU2026086Aprioritypatent/SU504532A1/ru
Publication of DD107848A1publicationCriticalpatent/DD107848A1/xx