1922664

Information

• Patent Grant
• 1922664

• References
• Source

• Patent Number

  1,922,664

• Date Filed

  Not available

• Date Issued

  Tuesday, August 15, 1933
  91 years ago

• CPC

  • F22B17/12 - the sectional headers being in vertical or substantially vertical arrangement
  • Y10T29/49387 - Boiler making

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 029 - Metal working
  • 165 - Heat exchange