1394875

Information

• Patent Grant
• 1394875

• References
• Source

• Patent Number

  1,394,875

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1921
  103 years ago

• CPC

  • H05B31/0012 - with a plurality of electrode pairs

• US Classifications

  • 314 - Electric lamp and discharge devices: consumable electrodes