2521581

Information

• Patent Grant
• 2521581

• References
• Source

• Patent Number

  2,521,581

• Date Filed

  Not available

• Date Issued

  Tuesday, September 5, 1950
  74 years ago

• CPC

  • A01D19/12 - with working tools arranged on an approximately vertical axis

• US Classifications

  • 171 - Unearthing plants or buried objects
  • 172 - Earth working