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 Г.М. Панченко, К.В. ПузицкийfiledCriticalГ.М. Панченко
Priority to SU196596ApriorityCriticalpatent/SU50379A1/en
Application grantedgrantedCritical
Publication of SU50379A1publicationCriticalpatent/SU50379A1/en