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 Н.М.Ш. ТейтельfiledCriticalН.М.Ш. Тейтель
Priority to SU153159ApriorityCriticalpatent/SU43049A1/en
Application grantedgrantedCritical
Publication of SU43049A1publicationCriticalpatent/SU43049A1/en