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 Ю.В. РогожинfiledCriticalЮ.В. Рогожин
Priority to SU387766ApriorityCriticalpatent/SU78559A1/ru
Application grantedgrantedCritical
Publication of SU78559A1publicationCriticalpatent/SU78559A1/ru