2196854

Information

• Patent Grant
• 2196854

• References
• Source

• Patent Number

  2,196,854

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1940
  84 years ago

• CPC

  • H01J29/023 - secondary-electron emitting electrode arrangements
  • H01J31/503 - with an electromagnetic electron-optic system

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 250 - Radiant energy
  • 313 - Electric lamp and discharge devices