3221680

Information

• Patent Grant
• 3221680

• References
• Source

• Patent Number

  3,221,680

• Date Filed

  Not available

• Date Issued

  Tuesday, December 7, 1965
  59 years ago

• CPC

  • F23M5/00 - Casings Linings Walls
  • F23M5/06 - Crowns or roofs for combustion chambers
  • F23M2700/005 - Structures of combustion chambers or smoke ducts

• US Classifications

  • 110 - Furnaces