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 Verner Kokhman, Gerda Vettske, Dittrich Klaus, Frank Frocher, Brigitte Gebkhardt, Falko Grimmer, Yurgen Myuller, Mueller Klaus Dieter, Diter Zas, Rajnkhold Shpringer, Zigrid TiffefiledCriticalVerner Kokhman
Application grantedgrantedCritical
Publication of SU563419A1publicationCriticalpatent/SU563419A1/ru