1699443

Information

• Patent Grant
• 1699443

• References
• Source

• Patent Number

  1,699,443

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1929
  96 years ago

• CPC

  • F23B80/02 - by means for returning flue gases to the combustion chamber or to the combustion zone
  • F23B60/02 - with combustion air supplied through a grate

• US Classifications

  • 110 - Furnaces