3615909

Information

• Patent Grant
• 3615909

• References
• Source

• Patent Number

  3,615,909

• Date Filed

  Not available

• Date Issued

  Tuesday, October 26, 1971
  53 years ago

• CPC

  • C21D9/60 - with induction heating
  • C21D8/0273 - Final recrystallisation annealing
  • C21D9/52 - for wires for strips; for rods of unlimited length
  • C22C38/00 - Ferrous alloys
  • C21D1/18 - Hardening Quenching with or without subsequent tempering
  • C21D8/0252 - with application of tension
  • Y02P10/253 - using induction furnaces

• US Classifications

  • 148 - Metal treatment
  • 427 - Coating processes