2219634

Information

• Patent Grant
• 2219634

• References
• Source

• Patent Number

  2,219,634

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1940
  84 years ago

• CPC

  • F26B17/16 - the materials passing down a heated surface
  • F26B25/002 - for bulk goods
  • F26B2200/14 - Sand

• US Classifications

  • 034 - Drying and gas or vapor contact with solids