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 SU1758685ApriorityCriticalpatent/SU417751A1/ru
Application grantedgrantedCritical
Publication of SU417751A1publicationCriticalpatent/SU417751A1/ru
Bundesrepublik Deutschland, Vertreten Durch Das Bundesministerium F. Wirtschaft Und Technologie, Dieses Vertreten D.D. Prasidenten Der Physikalisch-Technischen