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.)
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Publication date
Application filed by Н.С. Климов, Н. НазаровfiledCriticalН.С. Климов
Priority to SU108359ApriorityCriticalpatent/SU34141A1/ru
Application grantedgrantedCritical
Publication of SU34141A1publicationCriticalpatent/SU34141A1/ru