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 DD19129076ApriorityCriticalpatent/DD124140A1/xx
Priority to DE19767640845prioritypatent/DE7640845U1/de
Priority to HU77SCHI1461Aprioritypatent/HU174230B/hu
Priority to CS19177Aprioritypatent/CS190836B1/cs
Publication of DD124140A1publicationCriticalpatent/DD124140A1/xx
Priority to PL19599677Aprioritypatent/PL101378B1/pl