3388280

Information

• Patent Grant
• 3388280

• References
• Source

• Patent Number

  3,388,280

• Date Filed

  Not available

• Date Issued

  Tuesday, June 11, 1968
  56 years ago

• CPC

  • H01J1/20 - Cathodes heated indirectly by an electric current Cathodes heated by electron or ion bombardment
  • H01J3/024 - Electron guns using thermionic emission of cathode heated by electron or ion bombardment or by irradiation by other energetic beams
  • H01J29/04 - Cathodes

• US Classifications

  • 372 - Coherent light generators
  • 219 - Electric heating
  • 313 - Electric lamp and discharge devices