278304

Information

• Patent Grant
• 278304

• References
• Source

• Patent Number

  278,304

• Date Filed

  Not available

• Date Issued

  Tuesday, May 22, 1883
  141 years ago

• CPC

  • H05B31/0045 - of individual lamps; Associated impedances

• US Classifications

  • 314 - Electric lamp and discharge devices: consumable electrodes