3449625

Information

• Patent Grant
• 3449625

• References
• Source

• Patent Number

  3,449,625

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1969
  55 years ago

• CPC

  • H01J21/065 - Devices for short wave tubes
  • H01J1/15 - Cathodes heated directly by an electric current
  • H01J19/50 - Spacing members extending to the envelope
  • H01J2893/0008 - Supply leads Electrode supports via rigid connection to vessel

• US Classifications

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