1407761

Information

• Patent Grant
• 1407761

• References
• Source

• Patent Number

  1,407,761

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1922
  103 years ago

• CPC

  • H05B31/305 - Ignition devices
  • Y10T74/1558 - Grip units and features

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 074 - Machine element or mechanism
  • 314 - Electric lamp and discharge devices: consumable electrodes