3388290

Information

• Patent Grant
• 3388290

• References
• Source

• Patent Number

  3,388,290

• Date Filed

  Not available

• Date Issued

  Tuesday, June 11, 1968
  56 years ago

• CPC

  • H01J41/16 - using gettering substances

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 313 - Electric lamp and discharge devices
  • 324 - Electricity: measuring and testing
  • 417 - Pumps