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Priority claimed from SU904782128Aexternal-prioritypatent/RU1797822C/en
Application filed by Juozas CepelefiledCriticalJuozas Cepele
Priority to LTRP826ApriorityCriticalpatent/LT2192B/en
Publication of LT2192BpublicationCriticalpatent/LT2192B/en