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.К. МашковfiledCriticalЮ.К. Машков
Priority to SU1999219/06ApriorityCriticalpatent/RU478530C/ru
Priority claimed from SU1999219/06Aexternal-prioritypatent/RU478530C/ru
Application grantedgrantedCritical
Publication of SU478530A1publicationCriticalpatent/SU478530A1/ru
Publication of RU478530CpublicationCriticalpatent/RU478530C/ru