369501

Information

• Patent Grant
• 369501

• References
• Source

• Patent Number

  369,501

• Date Filed

  Not available

• Date Issued

  Tuesday, September 6, 1887
  137 years ago

• CPC

  • A01D17/16 - with a conveyor spiral

• US Classifications

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