3455257

Information

• Patent Grant
• 3455257

• References
• Source

• Patent Number

  3,455,257

• Date Filed

  Not available

• Date Issued

  Tuesday, July 15, 1969
  55 years ago

• CPC

  • F23G5/22 - the drums being conically shaped

• US Classifications

  • 110 - Furnaces
  • 034 - Drying and gas or vapor contact with solids