3657022

Information

• Patent Grant
• 3657022

• References
• Source

• Patent Number

  3,657,022

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1972
  52 years ago

• CPC

  • C21D8/0473 - Final recrystallisation annealing
  • C21D3/04 - Decarburising
  • C21D8/0426 - Hot rolling
  • C21D8/0457 - with diffusion of elements

• US Classifications

  • 148 - Metal treatment