3865638

Information

• Patent Grant
• 3865638

• References
• Source

• Patent Number

  3,865,638

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1975
  50 years ago

• CPC

  • C21D9/46 - for sheet metals
  • C21D3/04 - Decarburising
  • Y10S148/901 - Surface depleted in an alloy component
  • Y10S148/905 - Cutting tool

• US Classifications

  • 148 - Metal treatment