1861660

Information

• Patent Grant
• 1861660

• References
• Source

• Patent Number

  1,861,660

• Date Filed

  Not available

• Date Issued

  Tuesday, June 7, 1932
  92 years ago

• CPC

  • F22D1/24 - with fire tubes or flue ways traversing feed-water vessels

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 159 - Concentrating evaporators