3202221

Information

• Patent Grant
• 3202221

• References
• Source

• Patent Number

  3,202,221

• Date Filed

  Not available

• Date Issued

  Tuesday, August 24, 1965
  59 years ago

• CPC

  • A01B39/085 - the rotating tools being actively driven
  • A01B33/021 - with rigid tools

• US Classifications

  • 172 - Earth working