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Application filed by С.Н. Куплянский, нский С.Н. КуплfiledCriticalС.Н. Куплянский
Priority to SU127795ApriorityCriticalpatent/SU37158A1/ru
Application grantedgrantedCritical
Publication of SU37158A1publicationCriticalpatent/SU37158A1/ru