3600628

Information

• Patent Grant
• 3600628

• References
• Source

• Patent Number

  3,600,628

• Date Filed

  Not available

• Date Issued

  Tuesday, August 17, 1971
  54 years ago

• CPC

  • H01J31/16 - with mask carrying a number of selectively displayable signs
  • H04N5/7408 - Direct viewing projectors

• US Classifications

  • 348 - Television
  • 315 - Electric lamp and discharge devices: systems