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 К.О. КоровицынfiledCriticalК.О. Коровицын
Priority to SU4633267/12ApriorityCriticalpatent/RU1593310C/en
Priority claimed from SU4633267/12Aexternal-prioritypatent/RU1593310C/en
Application grantedgrantedCritical
Publication of SU1593310A1publicationCriticalpatent/SU1593310A1/en
Publication of RU1593310CpublicationCriticalpatent/RU1593310C/en