1475589

Information

• Patent Grant
• 1475589

• References
• Source

• Patent Number

  1,475,589

• Date Filed

  Not available

• Date Issued

  Tuesday, November 27, 1923
  101 years ago

• CPC

  • F22B27/14 - built-up from heat-exchange elements arranged within a confined chamber having heat-retaining walls

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 110 - Furnaces
  • 392 - Electric resistance heating devices