2642648

Information

• Patent Grant
• 2642648

• References
• Source

• Patent Number

  2,642,648

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1953
  71 years ago

• CPC

  • H01J19/38 - Control electrodes
  • H01J2893/0015 - Non-sealed electrodes

• US Classifications

  • 445 - Electric lamp or space discharge component or device manufacturing