3611013

Information

• Patent Grant
• 3611013

• References
• Source

• Patent Number

  3,611,013

• Date Filed

  Not available

• Date Issued

  Tuesday, October 5, 1971
  53 years ago

• CPC

  • H01J17/22 - Means for obtaining or maintaining the desired pressure within the tube

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 313 - Electric lamp and discharge devices
  • 356 - Optics: measuring and testing