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Application filed by А.В. Бровкина, Д.С. Великовский, С.В. МаковерfiledCriticalА.В. Бровкина
Priority to SU39832ApriorityCriticalpatent/SU71993A1/en
Application grantedgrantedCritical
Publication of SU71993A1publicationCriticalpatent/SU71993A1/en