2257957

Information

• Patent Grant
• 2257957

• References
• Source

• Patent Number

  2,257,957

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1941
  83 years ago

• CPC

  • F23H3/02 - internally cooled
  • F23H13/00 - Grates not covered by any preceding group
  • F23H2700/009 - Grates specially adapted for incinerators

• US Classifications

  • 122 - Liquid heaters and vaporizers