2147724

Information

• Patent Grant
• 2147724

• References
• Source

• Patent Number

  2,147,724

• Date Filed

  Not available

• Date Issued

  Tuesday, February 21, 1939
  86 years ago

• CPC

  • C21D5/10 - in gaseous agents
  • Y10S148/901 - Surface depleted in an alloy component
  • Y10T29/4981 - Utilizing transitory attached element or associated separate material

• US Classifications

  • 148 - Metal treatment
  • 029 - Metal working