3439104

Information

• Patent Grant
• 3439104

• References
• Source

• Patent Number

  3,439,104

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1969
  56 years ago

• CPC

  • C21B13/12 - in electric furnaces
  • C21B13/026 - heated electrically
  • C21B13/08 - in rotary furnaces
  • H05B3/62 - Heating elements specially adapted for furnaces

• US Classifications

  • 373 - Industrial electric heating furnaces