2166438

Information

• Patent Grant
• 2166438

• References
• Source

• Patent Number

  2,166,438

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1939
  85 years ago

• CPC

  • B07B1/528 - the scrapers being rotating
  • B07B1/524 - the brushes being rotating

• US Classifications

  • 209 - Classifying, separating, and assorting solids
  • 366 - Agitating