3238410

Information

• Patent Grant
• 3238410

• References
• Source

• Patent Number

  3,238,410

• Date Filed

  Not available

• Date Issued

  Tuesday, March 1, 1966
  58 years ago

• CPC

  • H01J19/00 - Details of vacuum tubes of the types covered by group H01J21/00
  • H01J2893/0024 - Planar grids
  • Y10T29/4962 - Grille making

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 029 - Metal working
  • 140 - Wireworking
  • 445 - Electric lamp or space discharge component or device manufacturing