469949

Information

• Patent Grant
• 469949

• References
• Source

• Patent Number

  469,949

• Date Filed

  Not available

• Date Issued

  Tuesday, March 1, 1892
  133 years ago

• CPC

  • B23K3/0384 - the heat being generated by an arc

• US Classifications

  • 219 - Electric heating
  • 314 - Electric lamp and discharge devices: consumable electrodes