1929444

Information

• Patent Grant
• 1929444

• References
• Source

• Patent Number

  1,929,444

• Date Filed

  Not available

• Date Issued

  Tuesday, October 10, 1933
  91 years ago

• CPC

  • F22B37/106 - Studding of tubes
  • Y10T29/49378 - Finned tube

• US Classifications

  • 165 - Heat exchange
  • 029 - Metal working
  • 122 - Liquid heaters and vaporizers
  • 219 - Electric heating