2140522

Information

• Patent Grant
• 2140522

• References
• Source

• Patent Number

  2,140,522

• Date Filed

  Not available

• Date Issued

  Tuesday, December 20, 1938
  86 years ago

• CPC

  • F23H9/02 - Revolving cylindrical grates
  • F23H2700/005 - Rotary grates with vertical axis

• US Classifications

  • 110 - Furnaces
  • 122 - Liquid heaters and vaporizers