2687488

Information

• Patent Grant
• 2687488

• References
• Source

• Patent Number

  2,687,488

• Date Filed

  Not available

• Date Issued

  Tuesday, August 24, 1954
  70 years ago

• CPC

  • 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

  • 313 - Electric lamp and discharge devices
  • 315 - Electric lamp and discharge devices: systems