3028518

Information

• Patent Grant
• 3028518

• References
• Source

• Patent Number

  3,028,518

• Date Filed

  Not available

• Date Issued

  Tuesday, April 3, 1962
  62 years ago

• CPC

  • H01J19/00 - Details of vacuum tubes of the types covered by group H01J21/00
  • H01J2893/0025 - by winding wire upon a support

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 445 - Electric lamp or space discharge component or device manufacturing