3449627

Information

• Patent Grant
• 3449627

• References
• Source

• Patent Number

  3,449,627

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1969
  55 years ago

• CPC

  • H01J41/16 - using gettering substances

• US Classifications

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