1869534

Information

• Patent Grant
• 1869534

• References
• Source

• Patent Number

  1,869,534

• Date Filed

  Not available

• Date Issued

  Tuesday, August 2, 1932
  92 years ago

• CPC

  • F28D1/024 - with an air driving element
  • Y10S165/099 - with fan

• US Classifications

  • 165 - Heat exchange
  • 454 - Ventilation