TREA

Evgeny N. Berezin

Follow

Person

  • Chelyabinsk, SU
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Roll-forging mill
    • Patent number 4,213,320
    • Issue date Jul 22, 1980
    • Vladimir N. Vydrin
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method and mill rolls for metal bar rolling
    • Patent number 4,199,970
    • Issue date Apr 29, 1980
    • Vladimir N. Vydrin
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method and mill for rolling metal billets
    • Patent number 4,157,025
    • Issue date Jun 5, 1979
    • Vladimir N. Vydrin
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...