3518477

Information

• Patent Grant
• 3518477

• References
• Source

• Patent Number

  3,518,477

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1970
  54 years ago

• CPC

  • H01J17/49 - Display panels
  • H01J2893/0069 - Tubes for displaying characters

• US Classifications

  • 313 - Electric lamp and discharge devices