1374404

Information

• Patent Grant
• 1374404

• References
• Source

• Patent Number

  1,374,404

• Date Filed

  Not available

• Date Issued

  Tuesday, April 12, 1921
  104 years ago

• CPC

  • H05B31/0084 - with stirrups or levers

• US Classifications

  • 314 - Electric lamp and discharge devices: consumable electrodes