2775433

Information

• Patent Grant
• 2775433

• References
• Source

• Patent Number

  2,775,433

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1956
  68 years ago

• CPC

  • F28F9/0138 - formed by sleeves for finned tubes
  • Y10T29/49382 - Helically finned

• US Classifications

  • 165 - Heat exchange
  • 029 - Metal working