1951752

Information

• Patent Grant
• 1951752

• References
• Source

• Patent Number

  1,951,752

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1934
  90 years ago

• CPC

  • F22D1/08 - the tubes having fins, ribs, gills, corrugations, or the like on their outer surfaces
  • Y10S165/437 - Coiled

• US Classifications

  • 165 - Heat exchange
  • 122 - Liquid heaters and vaporizers