3835921

Information

• Patent Grant
• 3835921

• References
• Source

• Patent Number

  3,835,921

• Date Filed

  Not available

• Date Issued

  Tuesday, September 17, 1974
  50 years ago

• CPC

  • F28F5/04 - Hollow impellers
  • F28D11/02 - the movement being rotary
  • F28D11/04 - performed by a tube or a bundle of tubes
  • Y10S165/151 - having hollow blade

• US Classifications

  • 165 - Heat exchange
  • 062 - Refrigeration