2869521

Information

• Patent Grant
• 2869521

• References
• Source

• Patent Number

  2,869,521

• Date Filed

  Not available

• Date Issued

  Tuesday, January 20, 1959
  66 years ago

• CPC

  • F22G5/06 - by recirculating flue gases
  • F22B21/341 - Vertical radiation boilers with combustion in the lower part
  • F22B37/107 - Protection of water tubes
  • F22G1/06 - with heat supply predominantly by radiation

• US Classifications

  • 122 - Liquid heaters and vaporizers