3002865

Information

• Patent Grant
• 3002865

• References
• Source

• Patent Number

  3,002,865

• Date Filed

  Not available

• Date Issued

  Tuesday, October 3, 1961
  64 years ago

• CPC

  • C21D7/04 - of the surface
  • C21D9/02 - for springs
  • Y10S29/036 - Shot blasting with other step
  • Y10T29/49609 - Spring making

• US Classifications

  • 148 - Metal treatment
  • 029 - Metal working
  • 072 - Metal deforming
  • 140 - Wireworking