3915224

Information

• Patent Grant
• 3915224

• References
• Source

• Patent Number

  3,915,224

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1975
  49 years ago

• CPC

  • F22B1/1884 - Hot gas heating tube boilers with one or more heating tubes
  • F28D7/08 - the conduits being otherwise bent
  • Y10S165/408 - Tube sleeve

• US Classifications

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