3847682

Information

• Patent Grant
• 3847682

• References
• Source

• Patent Number

  3,847,682

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1974
  50 years ago

• CPC

  • C21D8/0457 - with diffusion of elements
  • C21D3/08 - Extraction of nitrogen
  • C21D8/0473 - Final recrystallisation annealing

• US Classifications

  • 148 - Metal treatment