2209658

Information

• Patent Grant
• 2209658

• References
• Source

• Patent Number

  2,209,658

• Date Filed

  Not available

• Date Issued

  Tuesday, July 30, 1940
  84 years ago

• CPC

  • F22G7/145 - of inclined type

• US Classifications

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