1421221

Information

• Patent Grant
• 1421221

• References
• Source

• Patent Number

  1,421,221

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1922
  102 years ago

• CPC

  • F28D11/025 - Motor car radiators
  • Y10S165/303 - Annular heat exchanger

• US Classifications

  • 165 - Heat exchange