239308

Information

• Patent Grant
• 239308

• References
• Source

• Patent Number

  239,308

• Date Filed

  Not available

• Date Issued

  Tuesday, March 29, 1881
  144 years ago

• CPC

  • F23B1/24 - using rotating grate
  • Y10S122/02 - Air heater - indirectly heated
  • Y10S122/07 - Feeding air

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 110 - Furnaces