1842233

Information

• Patent Grant
• 1842233

• References
• Source

• Patent Number

  1,842,233

• Date Filed

  Not available

• Date Issued

  Tuesday, January 19, 1932
  94 years ago

• CPC

  • H05B31/009 - with tightening devices

• US Classifications

  • 314 - Electric lamp and discharge devices: consumable electrodes