3437134

Information

• Patent Grant
• 3437134

• References
• Source

• Patent Number

  3,437,134

• Date Filed

  Not available

• Date Issued

  Tuesday, April 8, 1969
  55 years ago

• CPC

  • F28F1/325 - Fins with openings
  • B21D53/085 - with fins places on zig-zag tubes or parallel tubes
  • F28F1/12 - the means being only outside the tubular element
  • Y10S165/502 - Lanced
  • Y10T29/4938 - Common fin traverses plurality of tubes

• US Classifications

  • 165 - Heat exchange
  • 029 - Metal working