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Priority claimed from SU884758197Aexternal-prioritypatent/SU1678344A1/ru
Application filed by Vytautas ZalkauskasfiledCriticalVytautas Zalkauskas
Priority to LTRP569ApriorityCriticalpatent/LT2123B/lt
Publication of LT2123BpublicationCriticalpatent/LT2123B/lt