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Application filed by Ю.Н. Ван-ГаутfiledCriticalЮ.Н. Ван-Гаут
Priority to SU143345ApriorityCriticalpatent/SU38213A1/ru
Application grantedgrantedCritical
Publication of SU38213A1publicationCriticalpatent/SU38213A1/ru