3138736

Information

• Patent Grant
• 3138736

• References
• Source

• Patent Number

  3,138,736

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1964
  60 years ago

• CPC

  • H01J37/073 - Electron guns using field emission, photo emission, or secondary emission electron sources
  • H01J3/025 - Electron guns using a discharge in a gas or a vapour as electron source
  • H01J2893/0061 - Tubes with discharge used as electron source

• US Classifications

  • 315 - Electric lamp and discharge devices: systems