830249

Information

• Patent Grant
• 830249

• References
• Source

• Patent Number

  830,249

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1906
  118 years ago

• CPC

  • H01J13/08 - characterised by the material

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 174 - Electricity: conductors and insulators