1769345

Information

• Patent Grant
• 1769345

• References
• Source

• Patent Number

  1,769,345

• Date Filed

  Not available

• Date Issued

  Tuesday, July 1, 1930
  94 years ago

• CPC

  • F26B17/1475 - the movement being a vibration or oscillation
  • F26B17/1416 - the ducts being half open or perforated and arranged horizontally

• US Classifications

  • 209 - Classifying, separating, and assorting solids
  • 034 - Drying and gas or vapor contact with solids