3220458

Information

• Patent Grant
• 3220458

• References
• Source

• Patent Number

  3,220,458

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1965
  59 years ago

• CPC

  • F23C99/00 - Subject-matter not provided for in other groups of this subclass
  • E21F7/00 - Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
  • F23B7/00 - Combustion techniques Other solid-fuel combustion apparatus
  • F23B2700/023 - with various arrangements not otherwise provided for
  • F23C2700/04 - Combustion apparatus using gaseous fuel

• US Classifications

  • 126 - Stoves and furnaces
  • 432 - Heating