620168

Information

• Patent Grant
• 620168

• References
• Source

• Patent Number

  620,168

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1899
  125 years ago

• CPC

  • F23B1/22 - using travelling grate
  • F24H1/28 - including one or more furnace or fire tubes

• US Classifications

  • 122 - Liquid heaters and vaporizers