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Application filed by Vladimir I Kaufman, German A Kain, Eduard L Jagud, Pavel I Sokolov, Viktor P Ljachov, Garrij V TeljatnikovfiledCriticalVladimir I Kaufman
Publication of CS229084A1publicationCriticalpatent/CS229084A1/cs
Publication of CS258425B1publicationCriticalpatent/CS258425B1/cs