3220486

Information

• Patent Grant
• 3220486

• References
• Source

• Patent Number

  3,220,486

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1965
  59 years ago

• CPC

  • A01B39/166 - actively driven

• US Classifications

  • 172 - Earth working
  • 384 - Bearings