2177917

Information

• Patent Grant
• 2177917

• References
• Source

• Patent Number

  2,177,917

• Date Filed

  Not available

• Date Issued

  Tuesday, October 31, 1939
  85 years ago

• CPC

  • F22B29/02 - of forced-circulation type
  • F22B37/303 - specially adapted for boiler drums

• US Classifications

  • 122 - Liquid heaters and vaporizers