1832769

Information

• Patent Grant
• 1832769

• References
• Source

• Patent Number

  1,832,769

• Date Filed

  Not available

• Date Issued

  Tuesday, November 17, 1931
  93 years ago

• CPC

  • F22D1/02 - with water tubes arranged in the boiler furnace, fire tubes, or flue ways
  • Y10S165/406 - Helically or spirally shaped

• US Classifications

  • 165 - Heat exchange
  • 122 - Liquid heaters and vaporizers