632707

Information

• Patent Grant
• 632707

• References
• Source

• Patent Number

  632,707

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1899
  125 years ago

• CPC

  • H05B31/0093 - with a threaded rod

• US Classifications

  • 314 - Electric lamp and discharge devices: consumable electrodes