3874345

Information

• Patent Grant
• 3874345

• References
• Source

• Patent Number

  3,874,345

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1975
  50 years ago

• CPC

  • F22B27/08 - bent helically

• US Classifications

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