3474281

Information

• Patent Grant
• 3474281

• References
• Source

• Patent Number

  3,474,281

• Date Filed

  Not available

• Date Issued

  Tuesday, October 21, 1969
  55 years ago

• CPC

  • H01J1/28 - Dispenser-type cathodes
  • H01J3/02 - Electron guns
  • H01J3/024 - Electron guns using thermionic emission of cathode heated by electron or ion bombardment or by irradiation by other energetic beams

• US Classifications

  • 313 - Electric lamp and discharge devices