1920365

Information

• Patent Grant
• 1920365

• References
• Source

• Patent Number

  1,920,365

• Date Filed

  Not available

• Date Issued

  Tuesday, August 1, 1933
  91 years ago

• CPC

  • F28D1/0233 - with air flow channels
  • F28D1/053 - the conduits being straight
  • Y10S165/332 - Coaxial ducts define air draft passage and annular passage for heat exchange fluid

• US Classifications

  • 165 - Heat exchange