2457950

Information

• Patent Grant
• 2457950

• References
• Source

• Patent Number

  2,457,950

• Date Filed

  Not available

• Date Issued

  Tuesday, January 4, 1949
  76 years ago

• CPC

  • H01J19/02 - Electron-emitting electrodes Cathodes
  • H01J2893/0001 - Electrodes and electrode systems suitable for discharge tubes or lamps

• US Classifications

  • 313 - Electric lamp and discharge devices