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Application filed by Aleksej L Vysotskij, Dmitrij L VysotskijfiledCriticalAleksej L Vysotskij
Priority to SU884476249ApriorityCriticalpatent/SU1590924A1/en
Application grantedgrantedCritical
Publication of SU1590924A1publicationCriticalpatent/SU1590924A1/en