3820210

Information

• Patent Grant
• 3820210

• References
• Source

• Patent Number

  3,820,210

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • B24B39/003 - the working tool being composed of a plurality of working rolls or balls
  • Y10T29/47 - Burnishing

• US Classifications

  • 029 - Metal working
  • 072 - Metal deforming
  • 451 - Abrading