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Application filed by А. И. Март шин, Б. В. Цыпин, В. А. Чурбанов, В. ндин, Пензенский Политехнический ИнститутfiledCriticalА. И. Март шин
Priority to SU1846505ApriorityCriticalpatent/SU432504A2/en
Application grantedgrantedCritical
Publication of SU432504A1publicationCriticalpatent/SU432504A1/en
Publication of SU432504A2publicationCriticalpatent/SU432504A2/en