1397621

Information

• Patent Grant
• 1397621

• References
• Source

• Patent Number

  1,397,621

• Date Filed

  Not available

• Date Issued

  Tuesday, November 22, 1921
  103 years ago

• CPC

  • F25B39/04 - Condensers
  • F25B43/02 - for separating lubricants from the refrigerant
  • F25B2339/047 - Water-cooled condensers
  • Y10S165/441 - Helical

• US Classifications

  • 165 - Heat exchange