2778757

Information

• Patent Grant
• 2778757

• References
• Source

• Patent Number

  2,778,757

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1957
  68 years ago

• CPC

  • C23C8/64 - Carburising
  • Y10T428/12458 - having composition, density, or hardness gradient

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 148 - Metal treatment