2419128

Information

• Patent Grant
• 2419128

• References
• Source

• Patent Number

  2,419,128

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1947
  78 years ago

• CPC

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

• US Classifications

  • 313 - Electric lamp and discharge devices