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Application filed by М.К. Беззубец, Л.Н. НиколенкоfiledCriticalМ.К. Беззубец
Priority to SU373812ApriorityCriticalpatent/SU75187A1/ru
Application grantedgrantedCritical
Publication of SU75187A1publicationCriticalpatent/SU75187A1/ru