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Application filed by И.С. Динер, Б.А. Миткалев, М.С. НемцовfiledCriticalИ.С. Динер
Priority to SU44459ApriorityCriticalpatent/SU72013A1/en
Application grantedgrantedCritical
Publication of SU72013A1publicationCriticalpatent/SU72013A1/en