3847212

Information

• Patent Grant
• 3847212

• References
• Source

• Patent Number

  3,847,212

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1974
  50 years ago

• CPC

  • F28F1/422 - with outside means integral with the tubular element and inside means integral with the tubular element
  • F28F1/42 - the means being both outside and inside the tubular element
  • Y10S165/515 - Patterned surface
  • Y10T29/49378 - Finned tube
  • Y10T29/49382 - Helically finned
  • Y10T29/49384 - Internally finned

• US Classifications

  • 165 - Heat exchange
  • 029 - Metal working