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Application filed by М.А. Бонч-Бруевич, С.И. ШапошниковfiledCriticalМ.А. Бонч-Бруевич
Priority to SU7392ApriorityCriticalpatent/SU6745A1/ru
Application grantedgrantedCritical
Publication of SU6745A1publicationCriticalpatent/SU6745A1/ru