2220944

Information

• Patent Grant
• 2220944

• References
• Source

• Patent Number

  2,220,944

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1940
  84 years ago

• CPC

  • F22B37/102 - Walls built-up from finned tubes
  • F23M5/02 - characterised by the shape of the bricks or blocks used
  • F23M2700/0056 - Bricks for water tube combustion chamber walls
  • Y10T29/49387 - Boiler making

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 029 - Metal working
  • 165 - Heat exchange