1929124

Information

• Patent Grant
• 1929124

• References
• Source

• Patent Number

  1,929,124

• Date Filed

  Not available

• Date Issued

  Tuesday, October 3, 1933
  91 years ago

• CPC

  • H01J3/025 - Electron guns using a discharge in a gas or a vapour as electron source
  • H01J2893/0062 - Tubes with temperature ionized gas as electron source

• US Classifications

  • 313 - Electric lamp and discharge devices