3171390

Information

• Patent Grant
• 3171390

• References
• Source

• Patent Number

  3,171,390

• Date Filed

  Not available

• Date Issued

  Tuesday, March 2, 1965
  60 years ago

• CPC

  • F22G5/06 - by recirculating flue gases
  • F22B35/002 - Control by recirculating flue gases
  • F22G5/02 - Applications of combustion-control devices

• US Classifications

  • 122 - Liquid heaters and vaporizers