1222537

Information

• Patent Grant
• 1222537

• References
• Source

• Patent Number

  1,222,537

• Date Filed

  Not available

• Date Issued

  Tuesday, April 10, 1917
  108 years ago

• CPC

  • H05B31/0084 - with stirrups or levers

• US Classifications

  • 314 - Electric lamp and discharge devices: consumable electrodes
  • 313 - Electric lamp and discharge devices