1321668

Information

• Patent Grant
• 1321668

• References
• Source

• Patent Number

  1,321,668

• Date Filed

  Not available

• Date Issued

  Tuesday, November 11, 1919
  105 years ago

• CPC

  • F23C99/00 - Subject-matter not provided for in other groups of this subclass
  • F24H1/186 - using fluid fuel
  • Y10S122/15 - Valves

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 237 - Heating systems