2027840

Information

• Patent Grant
• 2027840

• References
• Source

• Patent Number

  2,027,840

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1936
  89 years ago

• CPC

  • A01D17/22 - with several co-operating sifter bands

• US Classifications

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