3881451

Information

• Patent Grant
• 3881451

• References
• Source

• Patent Number

  3,881,451

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1975
  49 years ago

• CPC

  • F24H1/43 - helically or spirally coiled
  • F22B29/02 - of forced-circulation type
  • Y10S122/01 - Air heater

• US Classifications

  • 122 - Liquid heaters and vaporizers