1239759

Information

• Patent Grant
• 1239759

• References
• Source

• Patent Number

  1,239,759

• Date Filed

  Not available

• Date Issued

  Tuesday, September 11, 1917
  107 years ago

• CPC

  • H05B31/0006 - with superimposed electrodes

• US Classifications

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