Alexandr P. Voropaev

Person

  • Kommunarsk Voroshilovgradskoi oblasti, SU

Patents Grantslast 30 patents

  • Information Patent Grant

    Method of refining of metal

    • Patent number 4,140,522
    • Issue date Feb 20, 1979
    • Leonid I. Krupman
    • C21 - METALLURGY OF IRON