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Application filed by Volg Selskokhoz I, Proizv Ob SelkhozpogruzchikfiledCriticalVolg Selskokhoz I
Priority to SU894728417ApriorityCriticalpatent/RU1769051C/ru
Application grantedgrantedCritical
Publication of RU1769051CpublicationCriticalpatent/RU1769051C/ru