1821983

Information

• Patent Grant
• 1821983

• References
• Source

• Patent Number

  1,821,983

• Date Filed

  Not available

• Date Issued

  Tuesday, September 8, 1931
  93 years ago

• CPC

  • F26B9/087 - the recirculation path being positioned outside the drying enclosure
  • F26B17/1416 - the ducts being half open or perforated and arranged horizontally

• US Classifications

  • 034 - Drying and gas or vapor contact with solids