1440431

Information

• Patent Grant
• 1440431

• References
• Source

• Patent Number

  1,440,431

• Date Filed

  Not available

• Date Issued

  Tuesday, January 2, 1923
  102 years ago

• CPC

  • F24C1/02 - adapted for the use of two or more kinds of fuel or energy supply
  • F24B5/087 - Regulable circulation
  • F24C1/04 - simultaneously

• US Classifications

  • 126 - Stoves and furnaces