2631191

Information

• Patent Grant
• 2631191

• References
• Source

• Patent Number

  2,631,191

• Date Filed

  Not available

• Date Issued

  Tuesday, March 10, 1953
  71 years ago

• CPC

  • H01J19/78 - One or more circuit elements structurally associated with the tube

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 257 - Active solid-state devices
  • 313 - Electric lamp and discharge devices