929643

Information

• Patent Grant
• 929643

• References
• Source

• Patent Number

  929,643

• Date Filed

  Not available

• Date Issued

  Tuesday, July 27, 1909
  116 years ago

• CPC

  • H05B31/305 - Ignition devices

• US Classifications

  • 314 - Electric lamp and discharge devices: consumable electrodes
  • 362 - Illumination