1492481

Information

• Patent Grant
• 1492481

• References
• Source

• Patent Number

  1,492,481

• Date Filed

  Not available

• Date Issued

  Tuesday, April 29, 1924
  100 years ago

• CPC

  • A01D17/18 - without a conveyor spiral

• US Classifications

  • 171 - Unearthing plants or buried objects
  • 172 - Earth working
  • 209 - Classifying, separating, and assorting solids