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 Дмитровский Экскаваторный ЗаводfiledCriticalДмитровский Экскаваторный Завод
Priority to SU2085039ApriorityCriticalpatent/SU542689A1/en
Application grantedgrantedCritical
Publication of SU542689A1publicationCriticalpatent/SU542689A1/en