554542

Information

• Patent Grant
• 554542

• References
• Source

• Patent Number

  554,542

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1896
  129 years ago

• CPC

  • H05B31/0006 - with superimposed electrodes

• US Classifications

  • 314 - Electric lamp and discharge devices: consumable electrodes