3858861

Information

• Patent Grant
• 3858861

• References
• Source

• Patent Number

  3,858,861

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1975
  50 years ago

• CPC

  • C21B7/106 - Cooling of the furnace bottom

• US Classifications

  • 266 - Metallurgical apparatus
  • 110 - Furnaces
  • 373 - Industrial electric heating furnaces
  • 432 - Heating