1937117

Information

• Patent Grant
• 1937117

• References
• Source

• Patent Number

  1,937,117

• Date Filed

  Not available

• Date Issued

  Tuesday, November 28, 1933
  91 years ago

• CPC

  • F24H1/282 - with flue gas passages built-up by coaxial water mantles

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 110 - Furnaces