3900756

Information

• Patent Grant
• 3900756

• References
• Source

• Patent Number

  3,900,756

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1975
  49 years ago

• CPC

  • H05B31/10 - Cored carbon electrodes
  • H05B7/085 - mainly consisting of carbon

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 314 - Electric lamp and discharge devices: consumable electrodes