1557874

Information

• Patent Grant
• 1557874

• References
• Source

• Patent Number

  1,557,874

• Date Filed

  Not available

• Date Issued

  Tuesday, October 20, 1925
  99 years ago

• CPC

  • F23M5/02 - characterised by the shape of the bricks or blocks used
  • F23M2700/0056 - Bricks for water tube combustion chamber walls
  • Y10S122/03 - Gas flow baffles

• US Classifications

  • 110 - Furnaces
  • 122 - Liquid heaters and vaporizers