2638878

Information

• Patent Grant
• 2638878

• References
• Source

• Patent Number

  2,638,878

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1953
  71 years ago

• CPC

  • F24H1/282 - with flue gas passages built-up by coaxial water mantles
  • F24H1/205 - with furnace tubes
  • F24H1/28 - including one or more furnace or fire tubes

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 165 - Heat exchange